pen_i.cur下载

weixin_39820535 2023-11-17 15:00:57

鼠标文件 , 相关下载链接：https://download.csdn.net/download/2301_76350289/88495501?utm_source=bbsseo

...全文

5 回复打赏收藏转发到动态举报

写回复

回复

切换为时间正序

请发表友善的回复…

发表回复

提供一个核心类，接口仅几个，方便外围开发，你可以在此基础上做一些扩展，如使其界面更美观，方块更美观等 class DyPanel :Panel { #region 类属性 private Timer t_slow,t_fast; private XY current_p, start_p; private XY []cur_square; private XY []afterChange_squar; private int width, height; private SolidBrush bkbrush; private bool [][]ha; private int m, n; private XY [][][]a; private int rotate_outer, rotate_inner; private int outer, inner; private Random ra; private Panel p; private XY reference; private int mark; private Label markl; public char move_flag; private SolidBrush sqbrush; #endregion #region 公有的方法 public DyPanel(Rectangle rf,int width,int height,SolidBrush brush,ref Timer slow,ref Timer fast,Panel p,XY reference,Label markl) { sqbrush = new SolidBrush(Color.FromArgb(150,225,200,12)); this.markl = markl; mark = 0; markl.Text = mark.ToString(); ra = new Random(); this.p = p; this.reference = reference; a=new XY[6][][]; for (int i = 0; i < 6;i++ ) a[i]=new XY[4][]; for (int i = 0; i < 6; i++) { for (int j = 0; j < 4; j++) { a[i][j]=new XY[4]; for (int e = 0; e < 4; e++) a[i][j][e] = new XY(); } } setA(); cur_square=new XY[4]; afterChange_squar=new XY[4]; for (int i = 0; i < 4; i++) { cur_square[i] = new XY(); afterChange_squar[i] = new XY(); } outer = rand(0, 6); inner = rand(0, 4); rotate_outer = outer; rotate_inner = inner; copyXY(a[outer][inner], ref cur_square); outer = rand(0, 6); inner = rand(0, 4); current_p = new XY(); start_p = new XY(); this.width = width; this.height = height; this.bkbrush = brush; this.t_slow = slow; this.t_fast = fast; move_flag = 'p'; this.Size = new Size(rf.Right - rf.Left, rf.Bottom - rf.Top); this.Location = rf.Location; n = (this.ClientRectangle.Right - this.ClientRectangle.Left) / width; m = (this.ClientRectangle.Bottom - this.ClientRectangle.Top) / height; this.start_p.x = n / 2; this.start_p.y = 2; current_p.x = start_p.x; current_p.y = start_p.y; ha = new bool[m][]; for (int i = 0; i < m; i++) { ha[i] = new bool[n]; for (int j = 0; j < n; j++) ha[i][j] = false; } this.BackColor = Color.SlateBlue; this.Paint += new System.Windows.Forms.PaintEventHandler(this.panel_Paint); setTimer(true, false); } public int getMark() { return mark; } public void ReStart() { setTimer(false, false); mark = 0; for (int i = 0; i < m; i++) for (int j = 0; j < n; j++) ha[i][j] = false; current_p.x=start_p.x; current_p.y = start_p.y; mark = 0; markl.Text = mark.ToString(); Logic_Expunction(); Real_Expunction(); } public void draw() { Timer cur_t = t_fast.Enabled ? t_fast : t_slow; cur_t.Enabled = false; XY xy = new XY(); XY []original=new XY[4]; for (int i = 0; i < 4; i++) original[i] = new XY(); if (Square_Move(move_flag, ref xy,ref original)) { if (move_flag != 'w' && move_flag != 'W') { setSelfLogic(cur_square, xy, false, 4); int i; for (i = 0; i < 4; i++) { if (ha[cur_square[i].y - cur_square[0].y + current_p.y][cur_square[i].x - cur_square[0].x + current_p.x]) break; } if(i==4) { draw_square(new SolidBrush(this.BackColor), xy); setSelfLogic(cur_square, current_p, true, 4); draw_square(sqbrush, current_p); } else { current_p.x = xy.x; current_p.y = xy.y; setSelfLogic(cur_square, current_p, true, 4); } } else { setSelfLogic(original, xy, false, 4); draw_square(new SolidBrush(this.BackColor), xy,original); setSelfLogic(cur_square, current_p, true, 4); draw_square(sqbrush, current_p); } } else { setSelfLogic(cur_square, current_p, true, 4); current_p.x = start_p.x; current_p.y = start_p.y; if (IsFail()) { MessageBox.Show("Fail!"); setTimer(false, false); return; } copyXY(a[outer][inner], ref cur_square); rotate_outer = outer; rotate_inner = inner; outer = rand(0, 6); inner = rand(0, 4); p.Invalidate(); Logic_Expunction(); Real_Expunction(); } move_flag = 'p'; cur_t.Enabled = true; } public void setTimer(bool slow, bool fast) { t_slow.Enabled = slow; t_fast.Enabled = fast; } public void draw(Panel p,bool bkColor) { Color color; if(bkColor) { color = p.BackColor; } else { color = sqbrush.Color; } for (int i = 0; i < 4; i++) { p.CreateGraphics().DrawRectangle(new Pen(Brushes.Chocolate, 1), (a[outer][inner][i].x - a[outer][inner][0].x + reference.x) * width, (a[outer][inner][i].y - a[outer][inner][0].y + reference.y) * height, width, height); } } #endregion #region 私有的方法 private bool Square_Move(char a, ref XY xy,ref XY []original) { switch (a) { case 'a': case 'A': if (CanLeft() && CanDown()) { xy.x = current_p.x; xy.y = current_p.y; current_p.x--; current_p.y++; } else if(CanDown()) { xy.x = current_p.x; xy.y = current_p.y; current_p.y++; } else return false; break; case 'd': case 'D': if (CanRight() && CanDown()) { xy.x = current_p.x; xy.y = current_p.y; current_p.x++; current_p.y++; } else if (CanDown()) { xy.x = current_p.x; xy.y = current_p.y; current_p.y++; } else return false; break; case 'w': case 'W': if(CanRotate()) { copyXY(cur_square, ref original); copyXY(afterChange_squar, ref cur_square); xy.x = current_p.x; xy.y = current_p.y; //current_p.y++; } break; default: if (CanDown()) { xy.x = current_p.x; xy.y = current_p.y; current_p.y++; } else return false; break; } return true; } private int rand(int least,int largest) { return ra.Next(least, largest); } private void copyXY(XY[] s, ref XY[] t) { for (int i = 0; i < 4; i++) { t[i].x = s[i].x; t[i].y = s[i].y; } } private void draw_square(SolidBrush sb, XY reference) { for (int i = 0; i < 4; i++) { this.CreateGraphics().FillRectangle(sb, (cur_square[i].x - cur_square[0].x + reference.x) * width, (cur_square[i].y - cur_square[0].y + reference.y) * height, width, height); } } private void draw_square(SolidBrush sb, XY reference,XY []orientation) { for (int i = 0; i < 4; i++) { this.CreateGraphics().FillRectangle(sb, (orientation[i].x - orientation[0].x + reference.x) * width, (orientation[i].y - orientation[0].y + reference.y) * height, width, height); } } private void setA() { a[0][0][0].x = 1; a[0][0][0].y = 1; a[0][0][1].x = 0; a[0][0][1].y = 1; a[0][0][2].x = 0; a[0][0][2].y = 2; a[0][0][3].x = 1; a[0][0][3].y = 0; a[0][1][0].x = 1; a[0][1][0].y = 1; a[0][1][1].x = 0; a[0][1][1].y = 0; a[0][1][2].x = 1; a[0][1][2].y = 0; a[0][1][3].x = 2; a[0][1][3].y = 1; a[0][2][0].x = 1; a[0][2][0].y = 1; a[0][2][1].x = 0; a[0][2][1].y = 1; a[0][2][2].x = 0; a[0][2][2].y = 2; a[0][2][3].x = 1; a[0][2][3].y = 0; a[0][3][0].x = 1; a[0][3][0].y = 1; a[0][3][1].x = 0; a[0][3][1].y = 0; a[0][3][2].x = 1; a[0][3][2].y = 0; a[0][3][3].x = 2; a[0][3][3].y = 1; //end 0 a[1][0][0].x = 1; a[1][0][0].y = 1; a[1][0][1].x = 0; a[1][0][1].y = 0; a[1][0][2].x = 0; a[1][0][2].y = 1; a[1][0][3].x = 1; a[1][0][3].y = 2; a[1][1][0].x = 1; a[1][1][0].y = 1; a[1][1][1].x = 0; a[1][1][1].y = 1; a[1][1][2].x = 1; a[1][1][2].y = 0; a[1][1][3].x = 2; a[1][1][3].y = 0; a[1][2][0].x = 1; a[1][2][0].y = 1; a[1][2][1].x = 0; a[1][2][1].y = 0; a[1][2][2].x = 0; a[1][2][2].y = 1; a[1][2][3].x = 1; a[1][2][3].y = 2; a[1][3][0].x = 1; a[1][3][0].y = 1; a[1][3][1].x = 0; a[1][3][1].y = 1; a[1][3][2].x = 1; a[1][3][2].y = 0; a[1][3][3].x = 2; a[1][3][3].y = 0; //end 1 a[2][0][0].x = 1; a[2][0][0].y = 1; a[2][0][1].x = 0; a[2][0][1].y = 0; a[2][0][2].x = 1; a[2][0][2].y = 0; a[2][0][3].x = 0; a[2][0][3].y = 1; a[2][1][0].x = 1; a[2][1][0].y = 1; a[2][1][1].x = 0; a[2][1][1].y = 0; a[2][1][2].x = 1; a[2][1][2].y = 0; a[2][1][3].x = 0; a[2][1][3].y = 1; a[2][2][0].x = 1; a[2][2][0].y = 1; a[2][2][1].x = 0; a[2][2][1].y = 0; a[2][2][2].x = 1; a[2][2][2].y = 0; a[2][2][3].x = 0; a[2][2][3].y = 1; a[2][3][0].x = 1; a[2][3][0].y = 1; a[2][3][1].x = 0; a[2][3][1].y = 0; a[2][3][2].x = 1; a[2][3][2].y = 0; a[2][3][3].x = 0; a[2][3][3].y = 1; //end 2 a[3][0][0].x = 1; a[3][0][0].y = 1; a[3][0][1].x = 0; a[3][0][1].y = 0; a[3][0][2].x = 1; a[3][0][2].y = 0; a[3][0][3].x = 1; a[3][0][3].y = 2; a[3][1][0].x = 2; a[3][1][0].y = 1; a[3][1][1].x = 2; a[3][1][1].y = 0; a[3][1][2].x = 1; a[3][1][2].y = 1; a[3][1][3].x = 0; a[3][1][3].y = 1; a[3][2][0].x = 1; a[3][2][0].y = 2; a[3][2][1].x = 0; a[3][2][1].y = 0; a[3][2][2].x = 0; a[3][2][2].y = 1; a[3][2][3].x = 0; a[3][2][3].y = 2; a[3][3][0].x = 1; a[3][3][0].y = 0; a[3][3][1].x = 2; a[3][3][1].y = 0; a[3][3][2].x = 0; a[3][3][2].y = 0; a[3][3][3].x = 0; a[3][3][3].y = 1; //end 3 a[4][0][0].x = 0; a[4][0][0].y = 1; a[4][0][1].x = 0; a[4][0][1].y = 0; a[4][0][2].x = 0; a[4][0][2].y = 2; a[4][0][3].x = 1; a[4][0][3].y = 0; a[4][1][0].x = 2; a[4][1][0].y = 1; a[4][1][1].x = 0; a[4][1][1].y = 0; a[4][1][2].x = 1; a[4][1][2].y = 0; a[4][1][3].x = 2; a[4][1][3].y = 0; a[4][2][0].x = 1; a[4][2][0].y = 2; a[4][2][1].x = 0; a[4][2][1].y = 2; a[4][2][2].x = 1; a[4][2][2].y = 0; a[4][2][3].x = 1; a[4][2][3].y = 1; a[4][3][0].x = 1; a[4][3][0].y = 1; a[4][3][1].x = 0; a[4][3][1].y = 0; a[4][3][2].x = 0; a[4][3][2].y = 1; a[4][3][3].x = 2; a[4][3][3].y = 1; //end 4 a[5][0][0].x = 1; a[5][0][0].y = 0; a[5][0][1].x = 0; a[5][0][1].y = 0; a[5][0][2].x = 2; a[5][0][2].y = 0; a[5][0][3].x = 3; a[5][0][3].y = 0; a[5][1][0].x = 0; a[5][1][0].y = 1; a[5][1][1].x = 0; a[5][1][1].y = 2; a[5][1][2].x = 0; a[5][1][2].y = 3; a[5][1][3].x = 0; a[5][1][3].y = 0; a[5][2][0].x = 1; a[5][2][0].y = 0; a[5][2][1].x = 0; a[5][2][1].y = 0; a[5][2][2].x = 2; a[5][2][2].y = 0; a[5][2][3].x = 3; a[5][2][3].y = 0; a[5][3][0].x = 0; a[5][3][0].y = 1; a[5][3][1].x = 0; a[5][3][1].y = 2; a[5][3][2].x = 0; a[5][3][2].y = 3; a[5][3][3].x = 0; a[5][3][3].y = 0; } private bool IsFail() { for (int i = 0; i < 4; i++) if (ha[cur_square[i].y - cur_square[0].y + current_p.y + 1][cur_square[i].x - cur_square[0].x + current_p.x]) { setSelfLogic(cur_square, current_p, true, 4); return true; } return false; } private void setSelfLogic(XY[] xy, XY reference,bool logic,int m) { for(int i=0;icur_square[i].x - cur_square[0].x + current_p.x - 1 < 0) return false; } setSelfLogic(cur_square, current_p, false, 4); for (int i = 0; i < 4; i++) if (ha[cur_square[i].y - cur_square[0].y + current_p.y][cur_square[i].x - cur_square[0].x + current_p.x - 1]) { setSelfLogic(cur_square, current_p, true, 4); return false; } setSelfLogic(cur_square, current_p, true, 4); return true; } private bool CanRight() { for (int i = 0; i < 4; i++) { if (cur_square[i].x - cur_square[0].x + current_p.x + 1 >= n) return false; } setSelfLogic(cur_square, current_p, false, 4); for (int i = 0; i < 4; i++) if (ha[cur_square[i].y - cur_square[0].y + current_p.y][cur_square[i].x - cur_square[0].x + current_p.x+1]) { setSelfLogic(cur_square, current_p, true, 4); return false; } setSelfLogic(cur_square, current_p, true, 4); return true; } private bool CanRotate() { XY topleft, buttomright; topleft = new XY(); buttomright = new XY(); topleft.x = cur_square[0].x; topleft.y = cur_square[0].y; buttomright.x = cur_square[0].x; buttomright.y = cur_square[0].y; for (int i = 1; i < 4; i++) { buttomright.x = buttomright.x > cur_square[i].x ? buttomright.x : cur_square[i].x; buttomright.y = buttomright.y > cur_square[i].y ? buttomright.y : cur_square[i].y; topleft.x = topleft.x < cur_square[i].x ? topleft.x : cur_square[i].x; topleft.y = topleft.y < cur_square[i].y ? topleft.y : cur_square[i].y; } for (int y = topleft.y; y <= buttomright.y; y++) for (int x = topleft.x; x <= buttomright.x; x++) if (ha[y - cur_square[0].y + current_p.y][x - cur_square[0].x + current_p.x] && Isnotinself(new XY(x - cur_square[0].x + current_p.x, y - cur_square[0].y + current_p.y), cur_square, current_p, 4)) return false; Rotate(a[rotate_outer], ref afterChange_squar, 4); int temp_x; topleft.x = afterChange_squar[0].x; topleft.y = afterChange_squar[0].y; buttomright.x = afterChange_squar[0].x; buttomright.y = afterChange_squar[0].y; temp_x = afterChange_squar[0].x; for (int i = 1; i < 4; i++) { buttomright.x = buttomright.x > afterChange_squar[i].x ? buttomright.x : afterChange_squar[i].x; buttomright.y = buttomright.y > afterChange_squar[i].y ? buttomright.y : afterChange_squar[i].y; topleft.x = topleft.x < afterChange_squar[i].x ? topleft.x : afterChange_squar[i].x; topleft.y = topleft.y < afterChange_squar[i].y ? topleft.y : afterChange_squar[i].y; } for (int i = 0; i < 4; i++) { if (afterChange_squar[i].y - afterChange_squar[0].y + current_p.y >= m - 1 || afterChange_squar[i].x - afterChange_squar[0].x + current_p.x > n - 1 || afterChange_squar[i].x - afterChange_squar[0].x + current_p.x < 0) return false; } for (int y = topleft.y; y <= buttomright.y; y++) for (int x = topleft.x; x <= buttomright.x; x++) if ((ha[y - afterChange_squar[0].y + current_p.y][x - afterChange_squar[0].x + current_p.x] && Isnotinself(new XY(x - afterChange_squar[0].x + current_p.x, y - afterChange_squar[0].y + current_p.y), cur_square, current_p, 4))) return false; return true; } private bool CanDown() { for (int i = 0; i < 4; i++) { if (cur_square[i].y - cur_square[0].y + current_p.y + 1 > m-1) return false; } setSelfLogic(cur_square, current_p, false, 4); for (int i = 0; i < 4; i++) if (ha[cur_square[i].y - cur_square[0].y + current_p.y + 1][cur_square[i].x - cur_square[0].x +current_p.x]) { setSelfLogic(cur_square, current_p, true, 4); return false; } setSelfLogic(cur_square, current_p, true, 4); return true; } private void Rotate(XY[][] source, ref XY[] retur,int m) { retur[0].x = source[rotate_inner][0].x; retur[0].y = source[rotate_inner][0].y; rotate_inner++; rotate_inner = rotate_inner%4; for(int i=0;i<4;i++) { retur[i].x = source[rotate_inner][i].x; retur[i].y = source[rotate_inner][i].y; } } private bool Isnotinself(XY xy,XY []self,XY reference,int m) { for(int i=0;i= 0; i--) { int j; for (j = 0; j < n; j++) if (ha[i][j] == false) break; if (j == n) { for (int k = i; k >= 1; k--) { for (int e = 0; e < n; e++) ha[k][e] = ha[k - 1][e]; } for (int e = 0; e < n; e++) ha[0][e] = false; mark += 10; markl.Text = mark.ToString(); i++; } } } private void Real_Expunction() { for (int i = 0; i < m; i++) for (int j = 0; j < n; j++) if (ha[i][j]) this.CreateGraphics().FillRectangle(sqbrush, j * width, i * height, width, height); else this.CreateGraphics().FillRectangle(new SolidBrush(this.BackColor), j * width, i * height, width, height); } private void panel_Paint(object sender, PaintEventArgs e) { Logic_Expunction(); Real_Expunction(); } #endregion } }

可再发行编码 - 有限使用: msjet35.dll msjint35.dll msjter35.dll msrd2x35.dll msrepl35.dll expsrv.dll vbajet32.dll msexch35.dll msexcl35.dll mspdox35.dll msltus35.dll mstext35.dll msxbse35.dll MSJTOR35.DLL MSJT4JLT.DLL mdac_typ.exe msorcl32.dll msdaora.dll 可再发行代码 - 扩展的使用: comct232.ocx comct332.ocx comctl32.ocx comdlg32.ocx dblist32.ocx hhctrl.ocx mci32.ocx msadodc.ocx mschrt20.ocx mscomct2.ocx mscomctl.ocx mscomm32.ocx MSDatGrd.ocx msdatlst.ocx MSDatRep.ocx msflxgrd.ocx mshflxgd.ocx msinet.ocx msmapi32.ocx msmask32.ocx msrdc20.ocx mswinsck.ocx picclp32.ocx richtx32.ocx sysinfo.ocx tabctl32.ocx wbclsdsr.ocx anibtn32.ocx dbgrid32.ocx gauge32.ocx graph32.ocx grid32.ocx gswdll32.dll keysta32.ocx mschart.ocx msoutl32.ocx spin32.ocx threed32.ocx adodcchs.dll cmct2chs.dll cmct3chs.dll cmctlchs.dll cmdlgchs.dll datgdchs.dll datlschs.dll DatRpchs.DLL DBGRDCHS.DLL dblstchs.dll flxgdchs.dll mcichs.dll MsCc2chs.dll msch2chs.dll MSCMCCHS.DLL MSCOMCHS.DLL MSHFGCHS.DLL inetchs.dll MSMPICHS.DLL MSMSKCHS.DLL rdc20chs.dll WINSKCHS.DLL pcclpchs.dll rchtxchs.dll SYSINCHS.DLL TABCTCHS.DLL mswcrchs.dll MSCHTCHS.DLL 可再发行代码 - 标准: oleaut32.dll secur32.dll compobj.dll ole2.dll ole32.dll olecnv32.dll olethk32.dll rpcltc1.dll rpcltc5.dll rpcltccm.dll rpclts5.dll rpcltscm.dll rpcns4.dll rpcrt4.dll rpcss.exe storage.dll stdole2.tlb stdole32.tlb imagehlp.dll dllhost.exe comcat.dll iprop.dll rpcmqcl.dll rpcmqsvr.dll olepro32.dll asycfilt.dll mfc40.dll msvcrt40.dll dcomcnfg.exe oledlg.dll ciscnfg.exe dcomcnfg.hlp IE4\MSJavx86.exe os\system\atl.dll os\system\ansi\atl.dll VB98\template\code\loadres.bas VB98\template\code\RegKeys.BAS VB98\template\controls\ListBtns.frm VB98\template\controls\ListBtns.frx VB98\template\controls\listpick.frm VB98\template\controls\listpick.frx VB98\template\controls\tvlv.frm

蓝色炫酷鼠标指针，打造你个个性系统，不可错过哦~ （右键单击“install.inf”文件选择安装即可）

没法下载，到这里折腾一把试试。本文由abc2253130贡献 doc文档可能在WAP端浏览体验不佳。建议您优先选择TXT，或下载源文件到本机查看。 C#（WINFORM）学习一、 C#基础基础类型和变量类型和变量类型 C# 支持两种类型：“值类型”和“引用类型”。值类型包括简单类型（如 char、int 和 float 等）、枚举类型和结构类型。引用类型包括类 (Class)类型、接口类型、委托类型和数组类型。变量的类型声明变量的类型声明每个变量必须预先声明其类型。如 int a; int b = 100; float j = 4.5; string s1; 用 object 可以表示所有的类型。预定义类型下表列出了预定义类型，并说明如何使用。类型 object 说明所有其他类型的最终基类型字符串类型；字符串是 Unicode 字符序列 8 位有符号整型 16 位有符号整型 32 位有符号整型 64 位有符号整型示例 object o = null; 范围 string sbyte short int long string s = "hello"; sbyte val = 12; short val = 12; int val = 12; long val1 = 12; -128 到 127 -32,768 到 32,767 -2,147,483,648 2,147,483,647 -9,223,372,036,854,775,808 到第1页 C#（WINFORM）学习 long val2 = 34L; 到 9,223,372,036,854,775,807 byte ushort 8 位无符号整型 16 位无符号整型 byte val1 = 12; ushort val1 = 12; uint val1 = 12; uint 32 位无符号整型 uint val2 = 34U; ulong val1 = 12; ulong val2 = 34U; ulong 64 位无符号整型 ulong val3 = 56L; ulong val4 = 78UL; float 单精度浮点型 float val = 1.23F;7 位 double val1 = 1.23; double 双精度浮点型 double val2 = ±5.0 × 10?324 ±1.7 × 10 308 0 到 255 0 到 65,535 0 到 4,294,967,295 0 到 18,446,744,073,709,551,615 ±1.5 × 10?45 ±3.4 × 10 38 到到 4.56D;15-16 布尔型；bool 值或为真或为假字符类型；char 值是一个 Unicode 字符精确的小数类型，具有 28 个有效数字 bool val1 = true; bool val2 = false; char val = 'h'; decimal val = bool char decimal DateTime ±1.0 × 10?28 ±7.9 × 10 28 到 1.23M;28-29 变量转换简单转换： float f = 100.1234f; 可以用括号转换： short s = (short)f 也可以利用 Convert 方法来转换： string s1; s1=Convert.ToString(a); MessageBox.Show(s1); 常用 Convert 方法有：第2页 C#（WINFORM）学习 C# Convert.ToBoolean Convert.ToByte Convert.ToChar Convert.ToDateTime Convert.ToDecimal Convert.ToDouble Convert.ToInt16 Convert.ToInt32 Convert.ToInt64 Convert.ToSByte Convert.ToSingle Convert.ToString Convert.ToUInt16 Convert.ToUInt32 Convert.ToUInt64 备注 Math 类常用科学计算方法： C# Math.Abs Math.Sqrt Math.Round Math.Floor Math.Cos Math.Sin Math.Tan Math.Exp Math.Log Math.Pow(x,y) Math.Max(x,y) 备注绝对值开方取整，四舍五入取整，放弃小数余弦正弦正切返回 e 的指定次幂对数数字 x 的 y 次幂返回较大者第3页 C#（WINFORM）学习 Math.Min(x,y) 返回较小者枚举型一般为字符串，可以定义带数字的枚举型，示例为： enum Color { Red=1, Blue=2, Green=3 } class Shape { public int Fill(Color color) { int ii; switch(color) { case Color.Red: ii=10; break; case Color.Blue: ii=11; break; case Color.Green: ii=12; break; default: ii=-1; break; } return ii; } } private void button1_Click(object sender, System.EventArgs e) { int i; Shape s1=new Shape(); i=s1.Fill((Color)2); //i=s1.Fill(Color.Blue); MessageBox.Show(i.ToString()); 第4页 C#（WINFORM）学习 } Enum 需要放在 class 外面，才能被其它 class 的程序调用。 C#关键字关键字 abstract as base bool break byte case catch char checked class const continue decimal default delegate do double else enum event explicit extern false finally fixed float for foreach goto if implicit in int interface internal is lock long namespace new struct null switch object this operator throw out true override try params typeof private uint protected ulong public unchecked readonly unsafe ref ushort return using sbyte virtual sealed volatile short void sizeof while stackalloc static string 数组定义数组是一种排列有序的数据结构，包含于数组中的变量被称为数组的元素，它们都有相同的类型。数组声明 int [] array1 = new int[5]; int [,,] array3 = new int[10,20,30]; int [] array1 = new int[] {1,2,4}; 第5页 C#（WINFORM）学习数组引用 array1[0]="a1"; 注意，如果定义数组为 int[5] ，则从 0～4。数组长度 line0.GetLength(1) 数组赋值可以从一个已经赋值的数组 array2 向未赋值的同等数组 array1 赋值，用 array1=array2; 这时，array1 就变成和 array2 一样的数组了。集合集合的使用集合可以看成是可以随意添加的数组，因此凡是在使用数组的场合，都可以使用集合。而且集合的元素可以是任意对象，操作也比数组灵活的多。使用集合时，必须注意集合的生命期问题。如果有两个集合 L1 和 L2，使用了 L1=L2; 后，只要 L2 生命期没有终结，它的以后的变化就可能会影响到 L1 的数值。因此在赋值后应该及时销毁或者初始化 L2，以免发生不可预见的错误。比较使用 Contains 方法。 ArrayList Array1=new ArrayList(); Array1.Add("as"); bool b1=Array1.Contains("as"); MessageBox.Show(b1.ToString()); 第6页 C#（WINFORM）学习找到集合中数量最多的一个元素利用方法来查找，可以返回两个变量。 object Jmax0(ArrayList v11,ref int jj) { int i; object j0=0; ArrayList y11=new ArrayList(); //各个不同的元素的集合 int [] y12=new int[v11.Count]; //记录各个元素数量的数组 int xmax=0; //最大的一个元素的数量 for (i=0;i 10) if (y > 20) Console.Write("Statement_1"); else Console.Write("Statement_2"); 关系运算符 <,,>= 等于：== 不等于：!= 判断字符串 string 和 char 用 Equals 方法。逻辑运算符与：a & b 或：a | b 第8页 C#（WINFORM）学习非：! A 模数运算符模数运算符 (%) 计算第二个操作数除第一个操作数后的余数。所有数值类型都具有预定义的模数运算符。如 Console.WriteLine(5 % 2); Console.WriteLine(-5 % 2); Console.WriteLine(5.0 % 2.2); Console.WriteLine(-5.2 % 2.0); // =1 // =-1 // =0.6 // =-1.2 经常用模数运算符来判断整数为奇数（=1）或偶数（=0）。循环无条件循环 int sum,x; sum=0; for(x=1;x<=100;x++) { sum+=x; } 有条件循环 private void button1_Click(object sender, System.EventArgs e) { int sum=0; int x=0; while ((sum<100) & (x<20)) { x++; sum+=x; } string s2=Convert.ToString(x); MessageBox.Show(s2); } 运行显示 14。第9页 C#（WINFORM）学习如果改为 while ((sum<100) | (x<20)) 运行显示 20。多重选择 switch (i) { case 0: CaseZero(); break; case 1: CaseOne(); break; default: CaseOthers(); break; } 每个 case 后面，必须有 break 或者 goto，不允许贯穿。 Goto goto 语句将程序控制直接传递给标记语句。 for (int i = 0; i < x; i++) for (int j = 0; j =this.Width-10) { otherForm.Show(); otherForm.L1.Top=label1.Top; this.Hide(); } } private void button1_Click(object sender, System.EventArgs e) { label1.Left=label1.Left-10; } private void button3_Click(object sender, System.EventArgs e) { label1.Top=label1.Top-10; } private void button4_Click(object sender, System.EventArgs e) { label1.Top=label1.Top+10; } private void button5_Click(object sender, System.EventArgs e) { Application.Exit(); } 同样在 Form2 的 InitializeComponent()下面加上窗体定位语句： Point tempPoint = new Point(300,100); this.DesktopLocation = tempPoint; 然后把 Form2 的 StartPosition 属性改为 Manual。其余程序为： public Label L1 { get { return label1; } set { label1=value; 第 22 页 C#（WINFORM）学习 } } private void button2_Click(object sender, System.EventArgs e) { label1.Left=label1.Left+10; } private void button1_Click(object sender, System.EventArgs e) { Form1 otherForm1=new Form1(); label1.Left=label1.Left-10; if (label1.Left<=-10) { otherForm1.Show(); otherForm1.L2.Top=label1.Top; otherForm1.L2.Left=otherForm1.Width-20; this.Hide(); } } private void button3_Click(object sender, System.EventArgs e) { label1.Top=label1.Top-10; } private void button4_Click(object sender, System.EventArgs e) { label1.Top=label1.Top+10; } 动态产生窗体 public void CreateMyForm() { Form form1 = new Form(); Label label1 = new Label(); Button button1 = new Button (); TextBox text1 = new TextBox(); button1.Text = "确定"; button1.Location = new Point (110, 220); label1.Location = new Point (50,100); text1.Location = new Point (150,100); 第 23 页 C#（WINFORM）学习 form1.Text = "请输入"; label1.Text = "数据"; form1.FormBorderStyle = FormBorderStyle.FixedDialog; form1.ControlBox = false; form1.CancelButton = button1; form1.StartPosition = FormStartPosition.CenterScreen; form1.Controls.Add(button1); form1.Controls.Add(text1); form1.Controls.Add(label1); form1.ShowDialog(); ls=text1.Text; } private void button2_Click(object sender, System.EventArgs e) { CreateMyForm(); MessageBox.Show(ls); } ToolBar 普通使用在窗体上加上 ToolBar 界面修改后的问题在界面上修改后，最后要加上： toolBar1.Buttons.Add(toolBarButton1); toolBar1.Buttons.Add(toolBarButton2); toolBar1.Buttons.Add(toolBarButton3); // Add the event-handler delegate. toolBar1.ButtonClick (this.toolBar1_ButtonClick); += new ToolBarButtonClickEventHandler 或者把原有的程序第 24 页 C#（WINFORM）学习 this.toolBar1.Buttons.AddRange(new System.Windows.Forms.ToolBarButton[] { this.toolBarButton1,this.toolBarButton2,this.toolBarButton3}); 改变位置，到 toolBar1 设置的最下面。全部设置程序为： this.toolBar1.DropDownArrows = true; this.toolBar1.Location = new System.Drawing.Point(0, 0); this.toolBar1.Name = "toolBar1"; this.toolBar1.ShowToolTips = true; this.toolBar1.Size = new System.Drawing.Size(592, 42); this.toolBar1.TabIndex = 0; toolBar1.ButtonSize = new System.Drawing.Size(60, 50); // // toolBarButton1 // this.toolBarButton1.Text = "Open"; toolBarButton1 // // toolBarButton2 // this.toolBarButton2.Text = "Save"; toolBarButton2 // // toolBarButton3 // this.toolBarButton3.Text = "Print"; toolBar1.Buttons.Add(toolBarButton1); toolBar1.Buttons.Add(toolBarButton2); toolBar1.Buttons.Add(toolBarButton3); toolBar1.ButtonClick (this.toolBar1_ButtonClick); += new ToolBarButtonClickEventHandler 设置按钮大小如下设置，可以正常居中显示 9 号字体。 toolBar1.ButtonSize = new System.Drawing.Size(60, 50); 用程序实现可以用程序实现按钮的增加，但是无法全部实现自动化。第 25 页 C#（WINFORM）学习先需要手工添加 toolBar1 和 imageList1，然后把 imageList1 中的图片一一加上。 void toolBarSet() { //添加按钮 ToolBarButton toolBarButton1=new ToolBarButton(); ToolBarButton toolBarButton2=new ToolBarButton(); toolBar1.Buttons.AddRange(new System.Windows.Forms.ToolBarButton[] { toolBarButton1,toolBarButton2}); toolBar1.DropDownArrows = true; toolBar1.ImageList = imageList1; toolBar1.Size = new System.Drawing.Size(408, 37); toolBar1.TabIndex = 0; toolBar1.ButtonClick += new System.Windows.Forms.ToolBarButtonClickEventHandler(toolBar1_ButtonClick); // toolBarButton1 toolBarButton1.ImageIndex = 0; toolBarButton1.ToolTipText = "放大"; // toolBarButton2 toolBarButton2.ImageIndex = 1; toolBarButton2.ToolTipText = "缩小"; } private void Form1_Load(object sender, System.EventArgs e) { toolBarSet(); } private void toolBar1_ButtonClick(object sender, System.Windows.Forms.ToolBarButtonClickEventArgs e) { switch(toolBar1.Buttons.IndexOf(e.Button)) { case 0: //放大 MessageBox.Show("放大"); break; case 1: //缩小 MessageBox.Show("缩小"); break; default: MessageBox.Show("other"); break; 第 26 页 C#（WINFORM）学习 } } listBox 普通调用在窗体上放置一个 listBox1，一个 button1 和一个 label1。以下程序实现添加选项，双击选项就可以显示你的选择： private void button1_Click(object sender, System.EventArgs e) { listBox1.Items.Clear(); listBox1.Items.Add(""); listBox1.Items.Add("选择1"); listBox1.Items.Add("选择2"); listBox1.SelectedIndex=0; } private void listBox1_DoubleClick(object sender, System.EventArgs e) { Label1.Text=listBox1.SelectedIndex.ToString(); } 第一项是一个缺省空项，允许用户不选取退出。 Items 是一个集合，因此增减选项可以按照集合那样操作。用数组添加选项 System.Object[] ItemObject = new System.Object[10]; for (int i = 0; i <= 9; i++) { ItemObject[i] = "Item" + i; } listBox1.Items.AddRange(ItemObject); 第 27 页 C#（WINFORM）学习 ScrollBar 基本定义 ScrollBar 是滚动条控件，分成 HScrollBar（水平）和 VScrollBar（垂直）两种。有些控件如 ListBox，TextBox 等可以自动添加滚动条，但是有些控件则需要用程序添加。主要属性意义为： Value：滚动条的数值，反映当前移动块的位置。初始值设定后，运行时停留在这个位置。运行时拉动滚动条，由 Scroll 事件的 e.NewValue 参数传递过来。 Maximum：Value 的最大值，一般为 100。 Minimum： Value 的最小值，即端点的数值。如果 Maximum=100， Minimum=0， LargeChange=10，则从第一个端点开始 Value=0，到另一个端点的 Value=91。 SmallChange：每次点击移动的数值，一般为 1。 LargeChange：移动块的长度，一般为 10。控件一起使用和 PicturBox 控件一起使用 float vi; //每个单位的移动距离 float vk=0.8f; //PicturBox显示高度和实际高度的比例 int t0,ti; //PicturBox显示Top和Height。 private void vScrollBar1_Scroll(object sender,System.Windows.Forms.ScrollEventArgs e) { this.pictureBox1.Top = t0-Convert.ToInt32(e.NewValue*vi); this.pictureBox1.Height = ti+Convert.ToInt32(e.NewValue*vi); } private void button1_Click(object sender, System.EventArgs e) { Button oButton; TextBox oTextBox; for(int i=1;i<=8;i++) { oButton = new Button(); oButton.Text = "按钮"+ i.ToString(); oButton.Location = new System.Drawing.Point(50, i*50); oButton.Click += new System.EventHandler(oButton_Click); 第 28 页 C#（WINFORM）学习 this.pictureBox1.Controls.Add(oButton); oTextBox = new TextBox(); oButton.Tag = oTextBox; oTextBox.Text = "1000"; oTextBox.Location = new System.Drawing.Point(150, i*50); this.pictureBox1.Controls.Add(oTextBox); } } private void oButton_Click(object sender, System.EventArgs e) { Button btn = (Button)sender; TextBox txt = (TextBox)btn.Tag; txt.Text = Convert.ToString(Convert.ToInt32(txt.Text) + 1); } private void Form1_Load(object sender, System.EventArgs e) { vi=vk*pictureBox1.Height/vScrollBar1.Maximum; t0=pictureBox1.Top; ti=pictureBox1.Height; } Panel 基本定义 Windows 窗体 Panel（面板）控件用于为其他控件提供可识别的分组。在设计时所有控件均可轻松地移动，当移动 Panel 控件时，它包含的所有控件也将移动。分组在一个面板中的控件可以通过面板的 Controls 属性进行访问。 Panel 控件类似于 GroupBox 控件；但只有 Panel 控件可以有滚动条，而且只有 GroupBox 控件显示标题。将 AutoScroll 属性设置为 true，可以自动显示滚动条。但是这时右边界和下边界顶头，不是太好看。这时需要增加一个不可见的控件或者图像来调整。下例在 Panel 上用程序添加几个控件，产生滚动效果： private void button1_Click(object sender, System.EventArgs e) 第 29 页 C#（WINFORM）学习 { Button oButton; TextBox oTextBox; for(int i=1;i<=8;i++) { oButton = new Button(); oButton.Text = "按钮"+ i.ToString(); oButton.Location = new System.Drawing.Point(50, i*50); oButton.Click += new System.EventHandler(oButton_Click); this.panel1.Controls.Add(oButton); oTextBox = new TextBox(); oButton.Tag = oTextBox; oTextBox.Text = "1000"; oTextBox.Location = new System.Drawing.Point(150, i*50); this.panel1.Controls.Add(oTextBox); } //增加一个不可见按钮，调整右边界和下边界的位置 oButton = new Button(); oButton.Location = new System.Drawing.Point(260, 440); oButton.Height=0; oButton.Width=0; this.panel1.Controls.Add(oButton); } private void oButton_Click(object sender, System.EventArgs e) { Button btn = (Button)sender; TextBox txt = (TextBox)btn.Tag; txt.Text = Convert.ToString(Convert.ToInt32(txt.Text) + 1); } 控件上添加图像在 Panel 控件上添加图像在 Panel 控件上不能直接添加图像。需要在 Panel 控件上添加一个 picturBox，然后把其 SizeMode 设置为 AutoSize（随着图像大小调整控件大小）就可以实现图像的随意滚动察看。控件上画图在 Panel 控件上画图 Panel 控件上也可以画图。但是滚动时遮盖的图像就消失了。这时候需要在 Panel 控件上添加一个 picturBox ，然后在 picturBox 上画图，然后用一个 LocationChanged 事件，每次滚动时重画一遍即可：第 30 页 C#（WINFORM）学习 Pen pen1=new Pen(Color.Green,2); Graphics g1; void drawLine() { PointF p1=new PointF(0,0); PointF p2=new PointF(100,100); g1.DrawLine(pen1,p1,p2); } private void button2_Click(object sender, System.EventArgs e) { g1=this.pictureBox1.CreateGraphics(); drawLine(); } private void pictureBox1_LocationChanged(object sender, System.EventArgs e) { drawLine(); } 菜单普通应用手工添加即可。可以直接在其上写各个菜单项的名字，双击可以添加程序，使用非常方便。特殊功能 1．在设计时向菜单项添加选中标记对于在“菜单设计器”内选定的菜单项（三级菜单以下），单击该菜单项左侧的区域，选中标记√。或者在“属性”窗口中将 Checked 属性设置为 True。以编程方式向菜单项添加选中标记 myMnuItem.Checked = true; 2．在设计时向菜单项添加快捷键在“菜单设计器”内选择菜单项。在“属性”窗口中，将 Shortcut 属性设置为第 31 页 C#（WINFORM）学习下拉列表中提供的值之一。以编程方式向菜单项添加快捷键 myMnuItem.Shortcut = System.Windows.Forms.Shortcut.F6; 3．向菜单项添加访问键如键入“文件(&F)” ，显示“文件(F)” 。若要定位到此菜单项，请按 ALT 键，将焦点移动到菜单栏，然后按该菜单名称的访问键。当菜单打开并显示带访问键的项时，只需按该访问键就可选定该菜单项。或者直接按 ALT+主菜单的访问键。 4．将分隔线作为菜单项添加在菜单设计器中，右击需要有分隔线的位置，然后选择“插入分隔符”。或者在设置菜单项的 Text 属性（在“属性”窗口中、菜单设计器中或代码中）时，输入短划线 (–) 使该菜单项成为分隔线。其它控件单选按钮单选按钮是布置一组按钮，只能选择一组控件。本例放置 3 个单选按钮，Text 属性分别写上“已婚”“未婚”和“离异” 、，然后添加一个 Label 控件和一个 Button 控件，程序如下： public Form1() { InitializeComponent(); label1.Text="请选择"; …… private void button1_Click(object sender, System.EventArgs e) { if (radioButton1.Checked == true) label1.Text=radioButton1.Text; else if (radioButton2.Checked == true) label1.Text=radioButton2.Text; else label1.Text=radioButton3.Text; } 第 32 页 C#（WINFORM）学习 } 复选框可以选择多个的一组控件。本例放置 2 个复选按钮，Text 属性分别写上“加粗”和“斜体” ，然后添加一个 Label 控件和一个 Button 控件，程序如下： private void button1_Click(object sender, System.EventArgs e) { if (checkBox1.Checked == true) { if (checkBox2.Checked == true) label1.Text=checkBox1.Text+checkBox2.Text; else if (checkBox2.Checked == false) label1.Text=checkBox1.Text; } else if (checkBox2.Checked == true) label1.Text=checkBox2.Text; else if (checkBox2.Checked == false) label1.Text=""; } 第 33 页 C#（WINFORM）学习程序产生 checkBox CheckBox checkBox1=new CheckBox(); void checkSet() { this.Controls.Add(checkBox1); checkBox1.Location = new System.Drawing.Point(50, 64); checkBox1.Name = "checkBox1"; checkBox1.TabIndex = 2; checkBox1.Text = "图层1"; checkBox1.CheckedChanged += new System.EventHandler(checkBox1_CheckedChanged); } private void button1_Click(object sender, System.EventArgs e) { checkSet(); } private void checkBox1_CheckedChanged(object sender, System.EventArgs e) { if (checkBox1.Checked) MessageBox.Show("yes"); else MessageBox.Show("no"); } 如果要实现标题在左边，用 check1.Width=90; check1.CheckAlign=ContentAlignment.MiddleRight; 要在其它控件显示： check3.BringToFront(); 动态产生控件以下程序动态动态产生一组 Button 和 TextBox 控件，以及点击 Button 的事件。 private void button2_Click(object sender, System.EventArgs e) { Button oButton; TextBox oTextBox; 第 34 页 C#（WINFORM）学习 for(int i=1;i<=5;i++) { oButton = new Button(); oButton.Text = "按钮"+ i.ToString(); oButton.Location = new System.Drawing.Point(50, i*50); oButton.Click += new System.EventHandler(oButton_Click); this.Controls.Add(oButton); oTextBox = new TextBox(); oButton.Tag = oTextBox; oTextBox.Text = "1000"; oTextBox.Location = new System.Drawing.Point(150, i*50); this.Controls.Add(oTextBox); } } private void oButton_Click(object sender, System.EventArgs e) { Button btn = (Button)sender; TextBox txt = (TextBox)btn.Tag; txt.Text = Convert.ToString(Convert.ToInt32(txt.Text) + 1); } Splitter Windows 窗体 splitter 控件用于在运行时调整停靠控件的大小。 Splitter 控件常用于一类窗体，这类窗体上的控件所显示的数据长度可变，如 Windows 资源管理器，它的数据窗格所包含的信息在不同的时间有不同的宽度。如果一个控件可由 splitter 控件调整其大小，则当用户将鼠标指针指向该控件的未停靠的边缘时，鼠标指针将更改外观，指示该控件的大小是可以调整的。拆分控件允许用户调整该控件紧前面的停靠控件的大小。因此，为使用户能够在运行时调整停靠控件的大小，请将要调整大小的控件停靠在容器的一条边缘上，然后将拆分控件停靠在该容器的同一侧。以下例子自动产生几个控件，可以在运行中调整大小。 private void CreateMySplitControls() { TreeView treeView1 = new TreeView(); ListView listView1 = new ListView(); Splitter splitter1 = new Splitter(); 第 35 页 C#（WINFORM）学习 treeView1.Dock = DockStyle.Left; splitter1.Dock = DockStyle.Left; splitter1.MinExtra = 100; splitter1.MinSize = 75; listView1.Dock = DockStyle.Fill; treeView1.Nodes.Add("TreeView Node"); listView1.Items.Add("ListView Item"); this.Controls.AddRange(new Control[]{listView1, splitter1, treeView1}); } private void button1_Click(object sender, System.EventArgs e) { CreateMySplitControls(); } tabControl Windows 窗体 TabControl 显示多个选项卡。使用时，先添加一个 TabControl 控件，把它拉的足够大。然后在属性中添加按钮。每个按钮可以控制 TabControl 的其余页面，作为一个容器，可以添加其它空间。运行时只要点击按钮，就可以切换选项卡，实现不同的功能。 StatusBar 可以向 statusBar 添加面板（窗格），以分类显示信息： public void CreateStatusBarPanels() { statusBar1.Panels.Add(""); statusBar1.Panels.Add("Two"); statusBar1.Panels.Add("Three"); statusBar1.Panels[0].Width=200; statusBar1.Panels[0].Text="One"; statusBar1.ShowPanels = true; } 第 36 页 C#（WINFORM）学习三、字符和字符串字符和字符串字符串的操作在程序设计中非常有用，因此单独写成一章。 Char 基本定义 char 关键字用于声明一个字符。 char 类型的常数可以写成字符、十六进制换码序列或 Unicode 表示形式。您也可以显式转换整数字符代码。以下所有语句均声明了一个 char 变量并用字符 X 将其初始化： char MyChar = 'X'; char MyChar = '\x0058'; char MyChar = (char)88; char MyChar = '\u0058'; // Character literal // Hexadecimal // Cast from integral type // Unicode char 类型可隐式转换为 ushort、int、uint、long、ulong、float、double 或 decimal 类型。但是，不存在从其他类型到 char 类型的隐式转换。 ToCharArray 将字符串的部分字符复制到 Unicode 字符数组。示例 string str = "012wxyz789"; char[] arr; arr = str.ToCharArray(3, 4); 显示：wxyz 计算字符串宽度由于英文和中文的显示长度不一样，所以一些场合要区分。要引用 using System.Globalization; 第 37 页 C#（WINFORM）学习程序为： //计算一个字符的字符类型，=0汉字，=1英文 private int getCharType(char ch) { int i0; UnicodeCategory ca1=new UnicodeCategory(); ca1=System.Char.GetUnicodeCategory(ch); switch (ca1) { case UnicodeCategory.OtherPunctuation: i0=0; //汉字 break; case UnicodeCategory.OtherLetter: i0=0; //汉字 break; case UnicodeCategory.FinalQuotePunctuation: i0=0; //汉字 break; default: i0=1; //英文 break; } return i0; } //计算字符串（ss,包含中文）的实际宽度(返回)、起点(x0)和高度(height) //输入字号sz,只对于Pixel单位 public float StringWidth(string ss,float sz,ref float x0,ref float height) { char ch1; int i,i0=0; float width=0; float k1=1.02f; //汉字系数 float k2=0.55f; //英文系数 float k3=0.15f; //x0系数 float k4=1.10f; //高度系数 int i1=0; //汉字个数 int i2=0; //英文个数 height=k4*sz; x0=sz*k3; for(i=0;icur ={p1,p2,p3,p4}; Pen pen1=new Pen(Color.Blue,2); g.DrawPolygon(pen1,cur); } 计算字符串尺寸示例 2—找中点 — private void button1_Click(object sender, System.EventArgs e) { Graphics g= this.CreateGraphics(); SolidBrush myBrush=new SolidBrush(Color.Red); PointF ps=new PointF(); int sz=10; PointF p0=new PointF(300,100); string s1="我们还34fd还是和平使者"; Font myFont1 = new Font("宋体 ",sz,FontStyle.Bold,GraphicsUnit.Pixel); ps=StringCenter(s1,sz,p0); g.DrawString(s1, myFont1, myBrush, ps); //以下画十字线表示中心位置 PointF p1=new PointF(0,p0.Y); PointF p2=new PointF(600,p0.Y); PointF p3=new PointF(p0.X,0); PointF p4=new PointF(p0.X,300); Pen pen1=new Pen(Color.Blue,1); g.DrawLine(pen1,p1,p2); g.DrawLine(pen1,p3,p4); } 第 40 页 C#（WINFORM）学习分行操作回车符和换行符回车符和换行符 “\r\n” 显示换行的语句为： textBox1.Text="ok\\r\\n"; textBox1.Text+="ok1"; 字符串分行 string myString1 = "This is the first line of my string.\n" + "This is the second line of my string.\n" + "This is the third line of the string.\n"; string myString2 = @"This is the first line of my string. This is the second line of my string. This is the third line of the string."; 字符串操作字符串表示用@后边的字符串不被处理。 A1=@"c:\Docs\Source\a.txt"; string s1=@"c=""a.txt"; //显示：c=”a.txt string s1=@"c=""a.txt"""; //显示：c=”a.txt” If (s1 == @"""") Then //s1="" 求字符串长度 string s1="fdkls我们"; string s2=Convert.ToString(s1.Length); MessageBox.Show(s2); 第 41 页 C#（WINFORM）学习运行显示为 7，所有字符个数。裁剪字符串 String s = "123abc456"; Console.WriteLine(s.Remove(3, 3)); 打印“123456”。 Split 方法标识此实例中的子字符串（它们由数组中指定的一个或多个字符进行分隔），然后将这些子字符串放入一个 String 数组中。简单的例子可以按照“， ”分开，也可以去除空格。 private void button1_Click(object sender, System.EventArgs e) { string astring="123,456 78,789"; string [] split; Char [] chr=new Char [] {',',' '}; split = astring.Split(chr); MessageBox.Show("/"+split[0]+"/"); } 这时可以分成 123，456，78，789 四个字符串。注意，前后空白也可以看成是一个字符串，要消除，用 astring=astring.Trim(); 就可以了。复杂的例子当存在两个空格时，就出现找出空字符串的错误。用以下方法可以去掉空的字符串： string [] Split0(string [] sp) { string [] sp1=new string [sp.Length]; int i=0,j=0; foreach (string s1 in sp) { 第 42 页 C#（WINFORM）学习 if (s1!="") { sp1[i]=s1; i=i+1; } } string [] sp2=new string [i]; for (j=0;jCurrentDirectory() + @"\F8.txt"; 对于在一个.net 项目中，默认的路径是在\bin\debug 中，如果要放在项目文件目录中，用 string sfile = Directory.GetCurrentDirectory() + @"\..\..\F8.txt"; 生成新文件可以用： File.Create(path); 或者 FileStream fs = File.Create(path); 第 44 页 C#（WINFORM）学习复制 File.Copy(path,path1,true); 如果最后用 false，则第二个文件有时，发生错误。读写文本文件 using System; using System.IO; private void button1_Click(object sender, System.EventArgs e) { string s1 = @"D:\chen\mytest.txt"; string s2 = @"D:\chen\mytest1.txt"; String input; if (!File.Exists(s1)) { MessageBox.Show("File does not exist."); return; } StreamReader sr = File.OpenText(s1); StreamWriter wr = new StreamWriter(s2); while ((input=sr.ReadLine())!=null) { wr.WriteLine(input); } MessageBox.Show("The end."); sr.Close(); wr.Close(); } 读写中文 string s1 = @"d:\chen\a1.txt"; StreamReader sr = new StreamReader(s1,Encoding.GetEncoding("gb2312")); string rl; while((rl=sr.ReadLine())!=null) { MessageBox.Show(rl); } sr.Close(); 第 45 页 C#（WINFORM）学习文件操作控件打开文件用 openFileDialog 控件。 private void button1_Click(object sender, System.EventArgs e) { OpenFileDialog openFileDialog1 = new OpenFileDialog(); openFileDialog1.InitialDirectory=Directory.GetCurrentDirectory(); openFileDialog1.Filter = "Cursor Files|*.cur"; openFileDialog1.Title = "Select a Cursor File"; if(openFileDialog1.ShowDialog() == DialogResult.OK) { System.IO.StreamReader sr = new System.IO.StreamReader(openFileDialog1.FileName); MessageBox.Show(sr.ReadToEnd()); sr.Close(); } } 选择文件夹在工具箱上选择 folderBrowserDialog： folderBrowserDialog1.ShowDialog(); string s1 = folderBrowserDialog1.SelectedPath.ToString()+@"\mytest.txt"; StreamWriter wr = new StreamWriter(s1); 第 46 页 C#（WINFORM）学习六、绘图基本绘图画直线在 Button1 中加入以下程序： System.Drawing.Pen myPen; myPen = new System.Drawing.Pen(System.Drawing.Color.Red); System.Drawing.Graphics formGraphics = this.CreateGraphics(); formGraphics.DrawLine(myPen, 0, 0, 200, 200); myPen.Dispose(); formGraphics.Dispose(); 就可以在 Form1 上面画一条线了。用 myPen = new System.Drawing.Pen(System.Drawing.Color.Red,3); 可以改变线的宽度。最简单的画线程序 Pen pen1=new Pen(Color.Green,2); Graphics g1=this.CreateGraphics(); PointF p1=new PointF(0,0); PointF p2=new PointF(100,100); g1.DrawLine(pen1,p1,p2); pen1.Dispose(); g1.Dispose(); 最后两句可以不写，程序关闭时自动完成。画椭圆 System.Drawing.Pen myPen; myPen = new System.Drawing.Pen(System.Drawing.Color.Red); System.Drawing.Graphics formGraphics = this.CreateGraphics(); formGraphics.DrawEllipse(myPen, new Rectangle(0,0,200,300)); myPen.Dispose(); formGraphics.Dispose(); 以下画一个椭圆并填充。 System.Drawing.SolidBrush myBrush = new System.Drawing.SolidBrush(System.Drawing.Color.Red); 第 47 页 C#（WINFORM）学习 System.Drawing.Graphics formGraphics = this.CreateGraphics(); formGraphics.FillEllipse(myBrush, new Rectangle(0,0,200,300)); myBrush.Dispose(); formGraphics.Dispose(); 以椭圆的中心点画图 //以给定点找画椭圆的原始点，使得椭圆的中心点是给定点 PointF EllipseCenter(int xs,int ys,PointF p0) { float ek=0.5f; PointF p1=new PointF(); p1.X=p0.X-xs*ek; p1.Y=p0.Y-ys*ek; return p1; } private void button1_Click(object sender, System.EventArgs e) { Graphics g= this.CreateGraphics(); Pen pen1=new Pen(Color.Yellow,1); Pen pen2=new Pen(Color.Red,1); PointF ps=new PointF(); int xs=1,ys=1; //半轴 PointF p0=new PointF(300,100); ps=EllipseCenter(xs,ys,p0); //以下画十字线表示中心位置 PointF p1=new PointF(0,p0.Y); PointF p2=new PointF(600,p0.Y); PointF p3=new PointF(p0.X,0); PointF p4=new PointF(p0.X,300); g.DrawLine(pen1,p1,p2); g.DrawLine(pen1,p3,p4); g.DrawEllipse(pen2,ps.X,ps.Y,xs,ys); } 点弧线 System.Drawing.Pen myPen; myPen = new System.Drawing.Pen(System.Drawing.Color.Red); System.Drawing.Graphics formGraphics = this.CreateGraphics(); 第 48 页 C#（WINFORM）学习 formGraphics.DrawArc(myPen, 100, 50, 140, 70, 30, 180); myPen.Dispose(); formGraphics.Dispose(); 多点直线 System.Drawing.Pen myPen; myPen = new System.Drawing.Pen(System.Drawing.Color.Red); System.Drawing.Graphics formGraphics = this.CreateGraphics(); PointF point1 = new PointF( 50.0F, 50.0F); PointF point2 = new PointF(100.0F, 25.0F); PointF point3 = new PointF(200.0F, 5.0F); PointF point4 = new PointF(250.0F, 50.0F); PointF point5 = new PointF(300.0F, 100.0F); PointF point6 = new PointF(350.0F, 200.0F); PointF point7 = new PointF(250.0F, 250.0F); PointF[] curvePoints = { point1, point2, point3, point4, point5, point6, point7 }; formGraphics.DrawLines(myPen, curvePoints); myPen.Dispose(); formGraphics.Dispose(); 第 49 页 C#（WINFORM）学习也可以用以下方式给数组赋值： PointF[] pt=new PointF[]{new PointF(2,2),new PointF(25,150),new PointF(100,100)}; 多点弧线数据同上，修改如下： int offset = 1; //开始点（从0开始） int numSegments = 5; //包含后续点数 float tension = 1.0F; formGraphics.DrawCurve(myPen, curvePoints, offset, numSegments, tension); 第 50 页 C#（WINFORM）学习以下程序可以画一个封闭曲线： private void button1_Click(object sender, System.EventArgs e) { System.Drawing.Pen myPen; myPen = new System.Drawing.Pen(System.Drawing.Color.Red); System.Drawing.Graphics formGraphics = this.CreateGraphics(); PointF point1 = new PointF( 50.0F, 50.0F); PointF point2 = new PointF(100.0F, 25.0F); PointF point3 = new PointF(200.0F, 5.0F); PointF point4 = new PointF(250.0F, 50.0F); PointF point5 = new PointF(300.0F, 100.0F); PointF point6 = new PointF(350.0F, 200.0F); PointF point7 = new PointF(250.0F, 250.0F); PointF point8 = new PointF(40.0F, 150.0F); PointF[] curvePoints = { point1, point2, point3, point4, point5, point6, point7, point8, point1 }; int offset = 0; 第 51 页 C#（WINFORM）学习 int numSegments = 8; float tension = 1.0F; formGraphics.DrawCurve(myPen, curvePoints, offset, numSegments, tension); // formGraphics.DrawLines(myPen, curvePoints); myPen.Dispose(); formGraphics.Dispose(); } 如果是任意 3 点（或多点），在起始点不容易圆滑。可以用以下方法画封闭曲线： PointF[] curvePoints = { point3, point1, point2, point3, point1 }; int offset = 1; int numSegments = 3; float tension = 0.5F; 第 52 页 C#（WINFORM）学习这样可以保证第一个点处比较圆滑。参数设置设置线段宽度： myPen.Width =3; 在 pictrueBox 上面画线，修改 this： System.Drawing.Graphics formGraphics = picBox1.CreateGraphics(); 填充 System.Drawing.SolidBrush myBrush = new ystem.Drawing.SolidBrush(System.Drawing.Color.LightPink); System.Drawing.Pen myPen; myPen = new System.Drawing.Pen(System.Drawing.Color.Red,1); System.Drawing.Graphics formGraphics = pictureBox1.CreateGraphics(); PointF point1 = new PointF( 50.0F, 50.0F); PointF point2 = new PointF(100.0F, 25.0F); PointF point3 = new PointF(200.0F, 5.0F); PointF point4 = new PointF(250.0F, 50.0F); PointF point5 = new PointF(300.0F, 100.0F); PointF point6 = new PointF(350.0F, 200.0F); PointF point7 = new PointF(250.0F, 250.0F); PointF[] curvePoints = { 第 53 页 C#（WINFORM）学习 point1, point2, point3, point4, point5, point6, point7 }; formGraphics.FillPolygon(myBrush,curvePoints); formGraphics.DrawPolygon(myPen,curvePoints); myPen.Dispose(); myBrush.Dispose(); formGraphics.Dispose(); 颜色颜色基本设置普通颜色设置可以直接选取系统定义的颜色。高级设置采用 RGB 颜色。 Color myColor; myColor = Color.FromArgb(23,56,78); 每个数字均必须是从 0 到 255 之间的一个整数，分别表示红、绿、蓝三种原色。其中 0 表示没有该颜色，而 255 则为所指定颜色的完整饱和度。如 Color.FromArgb(0,255,0) 表示绿色， Color.FromArgb(255,255,0) 表示黄色， Color.FromArgb(0,0,0) 呈现为黑色，而 Color.FromArgb(255,255,255) 呈现为白色。还可以设置透明度，如 Color myColor; myColor = Color.FromArgb(127, 23, 56, 78); 127 表示 50%的透明度，255 表示完全不透明。选择颜色以下程序可以从调色板选择一个颜色，在 textBox 上面显示。 private void button1_Click(object sender, System.EventArgs e) { ColorDialog MyDialog = new ColorDialog(); 第 54 页 C#（WINFORM）学习 MyDialog.AllowFullOpen = false ; MyDialog.ShowHelp = true ; MyDialog.Color = textBox1.ForeColor ; if (MyDialog.ShowDialog() == DialogResult.OK) textBox1.ForeColor = MyDialog.Color; } 产生窗体选择颜色本程序在一个菜单里调用选择程序，产生一个动态的窗体，选择颜色后返回主程序，刷新原来的页面。由于没有掌握控制动态控件集合的方法，只好用枚举的方法定义动态控件，对于多于 10 个的颜色序列，需要修改程序。 Form form1; bool Cform=true; //颜色设置 private void menuItem31_Click(object sender, System.EventArgs e) { while (Cform) { CreateColorForm(); Tuli1(); DisLine(); } Cform=true; } //产生颜色输入窗体 private void CreateColorForm() { int i; form1=new Form(); Button [] ColorButton Label [] ColorLabel = new Button [myPloys.marks1.Count]; = new Label [myPloys.marks1.Count]; Button button0 = new Button (); form1.Width=130; form1.Height=130+myPloys.marks1.Count*30; form1.Text = "等值线颜色输入"; form1.FormBorderStyle = FormBorderStyle.FixedDialog; 第 55 页 C#（WINFORM）学习 form1.ControlBox = false; form1.StartPosition = FormStartPosition.CenterScreen; button0.Text = "退出"; button0.Width=80; button0.Location=new Point(25,50+myPloys.marks1.Count*30); form1.Controls.Add(button0); form1.CancelButton = button0; for (i=0;ipen = true ; MyDialog.ShowHelp = true ; MyDialog.Color = cColor[si] ; if (MyDialog.ShowDialog() == DialogResult.OK) cColor[si] = form1.Dispose(); } private void ColorButton0_Click(object sender, System.EventArgs e) { ColorSelect(0); { ColorSelect(1); { ColorSelect(2); { ColorSelect(3); { ColorSelect(4); { ColorSelect(5); } } } } } } private void ColorButton1_Click(object sender, System.EventArgs e) private void ColorButton2_Click(object sender, System.EventArgs e) private void ColorButton3_Click(object sender, System.EventArgs e) private void ColorButton4_Click(object sender, System.EventArgs e) private void ColorButton5_Click(object sender, System.EventArgs e) MyDialog.Color; 第 57 页 C#（WINFORM）学习 private void ColorButton6_Click(object sender, System.EventArgs e) { ColorSelect(6); { ColorSelect(7); { ColorSelect(8); { ColorSelect(9); { ColorSelect(10); } } } } } private void ColorButton7_Click(object sender, System.EventArgs e) private void ColorButton8_Click(object sender, System.EventArgs e) private void ColorButton9_Click(object sender, System.EventArgs e) private void ColorButton10_Click(object sender, System.EventArgs e) private void button0_Click(object sender, System.EventArgs e) { Cform=false; form1.Dispose(); } Font 和标注基本操作可以在指定的点开始写字，也可以在一个范围（如矩形）内写字。 Font myFont = new Font("Times New Roman", 14); Graphics g = this.CreateGraphics(); Pen myPen=new Pen(Color.Black); System.Drawing.SolidBrush myBrush=new SolidBrush(Color.Red); g.DrawRectangle(myPen,10, 10, 100, 200); g.DrawString("Look at this text!", myFont, myBrush, new RectangleF(10, 10, 100, 200)); g.DrawString("Look at this text!", myFont, myBrush, 10, 250); 画点和标注 System.Drawing.Pen myPen; myPen = new System.Drawing.Pen(System.Drawing.Color.Red,1); System.Drawing.Graphics formGraphics = this.CreateGraphics(); System.Drawing.SolidBrush drawBrush = new System.Drawing.SolidBrush(System.Drawing.Color.Black); System.Drawing.Font drawFont = new System.Drawing.Font("Arial", 8); string drawString = "201"; float x = 100.0f; 第 58 页 C#（WINFORM）学习 float y = 100.0f; formGraphics.DrawEllipse(myPen, x, y,4,4); formGraphics.DrawString(drawString, drawFont, drawBrush, x, y); myPen.Dispose(); drawFont.Dispose(); drawBrush.Dispose(); formGraphics.Dispose(); Font 定义 public Font( FontFamily family, float emSize, FontStyle style, GraphicsUnit unit ); 以下的例子可以改变字体，大小、字形、单位，还可以设置成垂直。 // Font myFont = new Font("Times New Roman",14,FontStyle.Italic,GraphicsUnit.Millimeter); Font myFont = new Font("隶书",34,FontStyle.Underline,GraphicsUnit.Pixel); Graphics g = this.CreateGraphics(); System.Drawing.SolidBrush myBrush=new SolidBrush(Color.Red); System.Drawing.StringFormat drawFormat = new System.Drawing.StringFormat (StringFormatFlags.DirectionVertical); g.DrawString("Hello!你好", myFont, myBrush, 10, 10,drawFormat); 根据给定点找到实际标注点 //根据给定点，找到实际标注点，使得以画出的字符串以给定点为中心 public PointF StringCenter(string s1,float sz,PointF p0) { PointF p1=new PointF(); float x0=0; float height=0; float width=StringWidth(s1,sz,ref x0,ref height); p1.X=p0.X-+x0-width/2; p1.Y=p0.Y-height/2; return p1; } 第 59 页 C#（WINFORM）学习 pictureBox 用 pictureBox 画图和在 form 上面画图类似，只是把 this 替换成 pictureBox1： System.Drawing.Pen myPen; myPen = new System.Drawing.Pen(System.Drawing.Color.Red,1); System.Drawing.Graphics formGraphics = pictureBox1.CreateGraphics(); System.Drawing.SolidBrush drawBrush = new System.Drawing.SolidBrush(System.Drawing.Color.Black); System.Drawing.Font drawFont = new System.Drawing.Font("Arial", 8); string drawString = "201"; float x = 200.0f; float y = 100.0f; formGraphics.DrawEllipse(myPen, x, y,4,4); formGraphics.DrawString(drawString, drawFont, drawBrush, x, y); myPen.Dispose(); drawFont.Dispose(); drawBrush.Dispose(); formGraphics.Dispose(); 用 pictureBox 显示一个图片有固定模式和缩放模式，通过设置 SizeMode 实现。程序如下： pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage; //按图像文件大小缩放 // pictureBox1.Image = Image.FromFile ("abc.bmp"); //文件放在\bin\Debug文件夹 //文件放在程序文件夹 pictureBox1.Image = Image.FromFile (@"..\..\abc1.bmp"); Region 基本概念指示由矩形和由路径构成的图形形状的内部。基本操作基本操作 System.Drawing.Graphics e = this.CreateGraphics(); 第 60 页 C#（WINFORM）学习 Rectangle regionRect = new Rectangle(20, 20, 100, 100); e.DrawRectangle(Pens.Black, regionRect); RectangleF complementRect = new RectangleF(90, 30, 100, 100); e.DrawRectangle(Pens.Red,Rectangle.Round(complementRect)); Region myRegion = new Region(regionRect); myRegion.Intersect(complementRect); SolidBrush myBrush = new SolidBrush(Color.Blue); e.FillRegion(myBrush, myRegion); 主要图形操作还有 Union 和 Xor。 Polygon 的镂空采用异或（Xor）运算。需要把 polygon 转换成路径： Graphics g1 = this.CreateGraphics(); GraphicsPath myPath1=new GraphicsPath(); PointF[] pts=new PointF[]{new PointF(2,20),new PointF(250,0) ,new PointF(100,100),new PointF(90,150),new PointF(10,70)}; myPath1.AddPolygon(pts); g1.DrawPath(Pens.Black,myPath1); GraphicsPath myPath2=new GraphicsPath(); PointF[] pts1=new PointF[]{new PointF(20,30),new PointF(50,70) ,new PointF(100,40)}; myPath2.AddPolygon(pts1); g1.DrawPath(Pens.Black,myPath2); Region myRegion = new Region(myPath1); myRegion.Xor(myPath2); SolidBrush myBrush = new SolidBrush(Color.Blue); g1.FillRegion(myBrush, myRegion); 如果要镂空多个空洞，需要把这些空洞都加入到 myPath2 中，其余操作同样。采用交、并和异或运算，都可以把两个对象互换。显示数据 public void DisplayRegionData(Graphics e, int len,RegionData dat) { int i; float x = 20, y = 140; 第 61 页 C#（WINFORM）学习 Font myFont = new Font("Arial", 8); SolidBrush myBrush = new SolidBrush(Color.Black); e.DrawString("myRegionData = ",myFont, y = 160; for(i = 0; i 300) { y += 20; x = 20; } e.DrawString(dat.Data[i].ToString(),myFont, x += 30; } } myBrush,new PointF(x, y)); myBrush,new PointF(x, y)); 路径基本应用用 GraphicsPath 可以把各种绘图元素（包括文字）包含进来，最后用 DrawPath 画出来。需要：using System.Drawing.Drawing2D; private void button2_Click(object sender, System.EventArgs e) { Pen myPen = new Pen(System.Drawing.Color.Red,1); System.Drawing.Graphics formGraphics = this.CreateGraphics(); GraphicsPath myPath1=new GraphicsPath(); myPath1.AddLine(0, 0, 10, 20); myPath1.AddEllipse(20,20,10,10); myPath1.AddLine(40, 40, 50, 120); formGraphics.DrawPath(myPen, myPath1); myPath1.Dispose(); myPen.Dispose(); formGraphics.Dispose(); } 第 62 页 C#（WINFORM）学习不连续线条用一个半径为 0 的点加在中间： myPath1.AddLine(0, 0, 10, 20); myPath1.AddEllipse(20,20,0,0); myPath1.AddLine(40, 40, 50, 120); 也可以用两个 path，然后用 path2.AddPath(path3,false); 复杂应用路径可以包含其它路径，汇总成一个大的图形。还可以通过矩阵变换进行缩放、平移和旋转。简单 Matrix 变换可以通过矩阵变换进行图形的变换。 private void button1_Click(object sender, System.EventArgs e) { System.Drawing.Graphics e1 = this.CreateGraphics(); Pen myPen = new Pen(Color.Blue, 1); Pen myPen2 = new Pen(Color.Red, 1); Matrix myMatrix1 = new Matrix(1.0f, 0.0f, 0.0f, 3.0f, 0.0f, 0.0f); // x和y方向都放大3倍 // Matrix myMatrix1 = new Matrix(1.0f, 0.0f, 0.0f, 1.0f, 50.0f, 50.0f); // 平移50,50 e1.DrawRectangle(myPen, 0, 0, 100, 100); e1.Transform = myMatrix1; e1.DrawRectangle(myPen2, 0, 0, 100, 100); myPen.Dispose(); e1.Dispose(); } 复杂 Matrix 变换下例显示缩放、旋转和移动变换。 public void MultiplyExample(PaintEventArgs e) { Pen myPen = new Pen(Color.Blue, 2); Pen myPen2 = new Pen(Color.Red, 1); 第 63 页 C#（WINFORM）学习 Matrix myMatrix1 = new Matrix(3.0f, 0.0f, 0.0f, 3.0f, 0.0f, 0.0f); // Scale Matrix myMatrix2 = new Matrix(0.0f, 1.0f, -1.0f, 0.0f, 0.0f, 0.0f); // Rotate 90, Matrix myMatrix3 = new Matrix(1.0f, 0.0f, 0.0f, 1.0f, 250.0f, 50.0f); // Translate ListMatrixElements(e, myMatrix1, "Beginning Matrix", 6, 40); myMatrix1.Multiply(myMatrix2, MatrixOrder.Append); ListMatrixElements(e,myMatrix1,"Matrix After 1st Multiplication",6,60); myMatrix1.Multiply(myMatrix3, MatrixOrder.Append); ListMatrixElements(e, myMatrix1,"Matrix After 2nd Multiplication",6,80); e.Graphics.DrawRectangle(myPen, 0, 0, 100, 100); e.Graphics.Transform = myMatrix1; e.Graphics.DrawRectangle(myPen2, 0, 0, 100, 100); } public void ListMatrixElements(PaintEventArgs e,Matrix matrix,string matrixName, int numElements,int y) { int i; float x = 20, X = 200; Font myFont = new Font("Arial", 8); SolidBrush myBrush = new SolidBrush(Color.Black); e.Graphics.DrawString(matrixName + ": for(i=0; iPen myPen = new Pen(Color.Black,1); cuurimage = Image.FromFile("abc.bmp"); Graphics g = Graphics.FromImage(cuurimage); Color [] c ={Color.LightPink,Color.Red,Color.Blue,Color.Brown,Color.Black}; for(k=0;k<=LineColor.Count-1;k++) { myPen.Color = c[(int)LineColor[k]]; p1=(PointF)LineArray[i]; i++; p2=(PointF)LineArray[i]; i++; g.DrawLine(myPen,p1,p2); } myPen.Dispose(); g = CreateGraphics(); g.DrawImage(cuurimage,50,0,cuurimage.Width+100,cuurimage.Height+10); g.Dispose(); 第 65 页 C#（WINFORM）学习画图保存在一个 pictureBox 上保存所画图像。先需要加载一个背景图片，把图画在这个图片上，最后保存到另外一个文件中。 private Image cuurimage; private void button2_Click(object sender, System.EventArgs e) { Pen myPen = new Pen(System.Drawing.Color.Red,2); pictureBox1.Image = Image.FromFile (@"..\..\abc1.bmp"); cuurimage = pictureBox1.Image; Graphics g = Graphics.FromImage(cuurimage); g.DrawEllipse(myPen, 100, 100,44,14); cuurimage.Save("abc0.bmp"); myPen.Dispose(); g.Dispose(); } 利用 Image 擦除图像下例要先准备一个 jpg 图像文件。先

下载资源悬赏专区

13,359

社区成员

12,733,065

社区内容

发帖

与我相关

我的任务

其他技术论坛（原bbs）

社区管理员

加入社区

近7日
近30日
至今

加载中

查看更多榜单

社区公告

暂无公告

试试用AI创作助手写篇文章吧

+ 用AI写文章