为什么我卸载一个模块后再次加载会不成功呢,dmesg里是 Unknown parameter `1' [问题点数:40分,结帖人shisi]

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一个表格."呢?">为什么"Hi, 我是一个表格."呢?
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为什么总说我parameter not found
void __fastcall TfrmManage::SpeedButton3Click(TObject *Sender)rnrn Panel1->Visible=true;rn SpeedButton2->Visible=true;rn SpeedButton3->Visible=false;rnrn//---------------------------------------------------------------------------rnrnvoid __fastcall TfrmManage::TreeView1Change(TObject *Sender,rn TTreeNode *Node)rnrn dmManage->qrySendInformation->Close();rn dmManage->qrySendInformation->SQL->Clear();rn if(Node->Text=="收件箱")rn dmManage->qrySendInformation->SQL->Add("select S_no ,Message ,Datatime ");rn dmManage->qrySendInformation->SQL->Add("from sendinformation where sendinformation.R_no=:user_no");rn pmuInsert->Enabled=false;rn pmuDelete->Enabled=false;rn pmuThrow->Enabled=false;rn rn else if(Node->Text=="发件箱")rn dmManage->qrySendInformation->SQL->Add("select R_no,Message,Datatime ");rn dmManage->qrySendInformation->SQL->Add("from sendinformation where sendinformation.S_no=:user_no ");rn pmuInsert->Enabled=true;rn pmuDelete->Enabled=true;rn pmuThrow->Enabled=true;rn rn else if(Node->Text=="垃圾箱")rn dmManage->qrySendInformation->SQL->Add("select * from sendinformation where charindex(';'+:user_no+':',sendinformation.reader_list)!=0");rn pmuInsert->Enabled=false;rn pmuDelete->Enabled=true;rn pmuThrow->Enabled=false;rn rn dmManage->qrySendInformation->ParamByName("user_no")->AsString=frmManage->user_no;rn dmManage->qrySendInformation->Prepare();rn dmManage->qrySendInformation->Open();rnrn//---------------------------------------------------------------------------rnrnvoid __fastcall TfrmManage::DBGrid1CellClick(TColumn *Column)rnrn if(Column->Title->Caption=="信件")rn frmREInformation->ShowModal();rn rnrn//---------------------------------------------------------------------------rnrnvoid __fastcall TfrmManage::pmuInsertClick(TObject *Sender)rnrn if(TreeView1->Selected->Text=="发件箱")rn frmREInformation->ShowModal();rn rnrnrnrnrnrnrn<em>为什么</em>我这段运行时,点击treeview上的node(无论是“收件箱”,“发件箱”),都显示<em>parameter</em>"user_no"not found
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为什么加载错误!
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为什么模除会得到-1呢?
28016%11=-1?
[Help!!]为什么会出现unknown table?
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为什么会弹出Windows unknown error对话框
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为什么我创建文件不成功!!!!!
TimeTag=DateTime.Now.ToString("yyyyMMdd") + DateTime.Now.Hour.ToString("00") + DateTime.Now.Minute.ToString("00") + DateTime.Now.Second.ToString("00");rnrnFileInfo Myfile=new FileInfo(@"Result\\Check\" + TimeTag + ".txt"); rnrn这样应该会创建<em>一个</em>文件,但是就是没有反应?rnrn前几天是可以的,但是<em>为什么</em>现在不行了?rnrn还有,我所有的文件夹都是只读,我是administrator登陆上来,怎么回事啊.望高手指点
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我如果用AfxRegisterWndClass注册就可以成功rn 代码如下:rnLPCTSTR lpszWndClass = AfxRegisterWndClass(CS_HREDRAW | CS_VREDRAW, ::LoadCursor(NULL, IDC_ARROW),rn (HBRUSH)GetStockObject(BLACK_BRUSH), ::LoadIcon(AfxGetResourceHandle(),rn IDI_APPLICATION));rnrnrnCreateWindow(lpszWndClass, "网络播放器",rn WS_OVERLAPPEDWINDOW | WS_CAPTION | WS_CLIPCHILDREN,rn CW_USEDEFAULT, CW_USEDEFAULT,rn DEFAULT_VIDEO_WIDTH, DEFAULT_VIDEO_HEIGHT,rn rn 0, 0, AfxGetInstanceHandle(), 0);rnrn但如果是这样就<em>不成功</em>了:错在不能正确的createwindow()rnrn WNDCLASS wc;rn ZeroMemory(&wc, sizeof wc);rn wc.hInstance = AfxGetInstanceHandle();rn wc.lpszClassName = CLASSNAME;rn wc.lpszMenuName = NULL;rn wc.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);rn wc.hCursor = LoadCursor(NULL, IDC_ARROW);rn wc.hIcon = LoadIcon(AfxGetInstanceHandle(),IDI_APPLICATION); rn if(!RegisterClass(&wc))rn rn exit(1);rn rn hWndApp = CreateWindow(CLASSNAME, APPLICATIONNAME,rn WS_OVERLAPPEDWINDOW | WS_CAPTION | WS_CLIPCHILDREN,rn CW_USEDEFAULT, CW_USEDEFAULT,rn DEFAULT_VIDEO_WIDTH, DEFAULT_VIDEO_HEIGHT,rn 0, 0, AfxGetInstanceHandle(), 0);rnrnrn
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下面是我写的<em>一个</em>截取<em>一个</em>字段中的满足条件的东东的代码rn要求:字段只有逗号做分隔,出现在最前面的逗号就要删掉,没有的话,读取到下<em>一个</em>逗号和开始位置之间的字符rnfunction quzi( ss:string): string;rnvarrn n1,n2,i1:integer ;rn find:Boolean;rnbeginrn n1:= 1;rn n2:= 1;rn i1:=1;rn while (length(ss) > 0) and (n1 > 0) dorn beginrn Find := False;rn while not find dorn beginrn n1 := pos(’,’, ss);rn if n1=1 thenrn beginrn system.delete(ss, 1, n1+1);//好像没 起作用?请执教rn end;rn n1 := pos(’,’, ss);rn if n1= 0 thenrn Find:= True;rn end;rnrn ss:= copy(ss, 1, n1-1); //读出数据rn result:=ss;rn rn end;rnend;rn
为什么我注册不成功
老说什么“rnBorland license information for kylix does not exist.rn”rn我看前面都成功了啊,点finish<em>为什么</em>会这样。郁闷。
为什么我的分页显示不成功
rnrn 还没有任何信息rn rnrn< numperpagern nTitle = trim(rs("news_title"))rn nReDate = rs("news_revdatetime")rn nRevert = rs("news_revert")rn nDate = rs("news_datetime")rn rn ','_blank','scrollbars=yes,width=700,height=450')" title=""> rn rn rn rn rn rnrnrn 共有页rn <>1 then%>rn 首页 rn rn 首页 rn rn 1 then%>rn 上一页 rn rn 上一页rn rn <>cint(totalpages) then%>rn 下一页rn rn 下一页rn rn <>cint(totalpages) then%>rn 末页rn rn 末页rn rn rnrn
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为什么我在FLASH里画图的线条会这样的呢?
<em>为什么</em>我在FLASH里画图的线条会这样的呢?不是偏黑色(线条颜色太明显了没有"朦胧"美)就是偏其他颜色,总之就是没有别人画得好看,这是不是要一些"压笔感"之类处理的?除此之外还有没有什么解决方法?
我的机器里为什么会缺少“System.Net.Dll”文件呢?
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加载模块时出现很多类似Unknown symbol __divdf3的错误,是哪里出错了呢???
如题,在2.6中<em>加载</em><em>一个</em><em>模块</em>的时候出现很多未定义符号的错:rnFileCore: Unknown symbol __eqdf2rnFileCore: Unknown symbol __divdi3rnFileCore: Unknown symbol __floatdidfrnFileCore: Unknown symbol __gtdf2rnFileCore: Unknown symbol __floatsidfrnFileCore: Unknown symbol __ltdf2rnFileCore: Unknown symbol __fixunsdfsirnFileCore: Unknown symbol __adddf3rnFileCore: Unknown symbol __udivdi3rnFileCore: Unknown symbol __fixdfsirnrn请问是<em>为什么</em>呢?/
为什么输入数据后,会没有输出呢?
#includernvoid sub(int n,int uu[])rnint t;rnt=uu[n--];rnt+=3*uu[n];rnn++;rnif(t>10)rnuu[n++]=t/10;uu[n]=t%10;rnelsernuu[n]=t;rnrnmain()rnint i,n,aa[10]=0;rnscanf("%d%d%d",&n,&aa[0],&aa[1]);rnfor(i=1;i
unknown symbol in module or invalid parameter的问题
做<em>一个</em>led驱动insmod时出现了上面的问题 在驱动里随机加句话或者减句话 可能能<em>加载</em>上 但再改改其他的问题又出来了 rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rnrn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rn#include rnint mem_major;rnstruct device *dev;rnstruct class *myclass;rnstruct cdev cdev;rnint led[4]=S3C2410_GPB(5),S3C2410_GPB(6),S3C2410_GPB(7),S3C2410_GPB(8);rnint bright[4]=1,2,4,8;rnint led_ctl(struct inode* node,struct file* led_file,unsigned int cmd,unsigned long arg)rn int *a;rn int i;rn if((a=kmalloc(4,GFP_KERNEL))==NULL)return -EINVAL;rn copy_from_user(a,(int *)arg,4);rn rn printk("""ioctl:%d\n",arg);rn switch(cmd) rn case 0:rn case 1:rn if (arg > 4) rn return -EINVAL;rn rn s3c2410_gpio_setpin(led[arg], !cmd);rn return 0;rn default:rn return -EINVAL;rn rn return 0;rn rnint led_open(struct inode *inode, struct file *filp)rn printk("""open\n");rn return 0;rnrnint mem_release(struct inode *inode, struct file *filp)rnrn return 0;rnrnstatic struct file_operations mem_fops=rn .owner= THIS_MODULE,rn .open=led_open,rn .ioctl=led_ctl,rn .release = mem_release,rn;rnstatic int __init ledinit(void)rn dev_t devno=0;rn int i;rn if(alloc_chrdev_region(&devno, 0, 1, "leddev"): <em>unknown</em> symbol in module or invalid <em>parameter</em>
为什么我的Hscroll拖动后停下来会闪动呢
怎么设置为不闪动呢
关于unknown nls parameter specified 出错!
ORACLE数据库是在专门的一台服务器中的,但现在我在另一台机子WIN2000SERVER上装了客户端和IIS,用ASP访问数据库,,就提示Microsoft OLE DB Provider for Oracle 错误 '80004005' ORA-12705: invalid or <em>unknown</em> NLS <em>parameter</em> value specified ,,请问是怎么回事。这是我连接的代码conn.open "Provider=MSDAORA.1;user ID=user ;password=pss;data source=shlstore;Persist Security Info=True",原来都是能用的!rnrn
为什么我使用atoi后数据值会变化呢?
char A[20] = "5315658672";rnint B = atoi(A);rn<em>为什么</em>我使用atoi后; B的值就变成了2147483647而不是5315658672呢?
Ubuntu 卸载再次安装软件包出问题了
我安装的是ubuntu的server版,安装了PHP、MYSQL、phpmyadmin,不知道后来更新了什么东西,测试页打开提示错误,好像是什么路径错误,找不到什么。于是我就在网上找了很多资料关于<em>卸载</em>软件的命令,想<em>卸载</em>后从新安装,在网上找到<em>一个</em>apt-remove,<em>卸载</em>好像倒是成功了,但是<em>再次</em>安装 sudo apt-get install libapache2-mod-php5,安装<em>不成功</em>,哎、、、后面的就是搞的我心烦rnrnrn 就是想大家帮我看看 有什么办法从新把PHP安装好
VisualStudio卸载后无法再次安装的解决方法
方法来源于<em>一个</em>日本网站: www.osadasoft.com/%E7%84%A1%E6%96%99%E7%89%88%E9%96%8B%E7%99%BA%E7%92%B0%E5%A2%83-visual-studio-community-2013%E3%82%92%E3%82%A4%E3%83%B3%E3%82%B9%E3%83%88%E3%83%BC%E3%83%AB%E3%81%97%E3%8
setwindowshookex卸载再次调用失败
我在dll中(扩展的dll)调用了setwindowshookex函数,后用UnhookWindowsHookEx正确. rn 但是当我<em>再次</em>调用setwindowshookex时,却返回错误,请问这是怎么回事?
数据库卸载后安装不成功的问题
数据库完美<em>卸载</em>以及重新安装的血泪史
双系统卸载后无法再次安装
之前把ubuntu系统安装在了E盘,后来把E盘清空了,现在用U盘<em>再次</em>安装ubuntu,无法进入。怎么才能<em>再次</em>安装ubuntu?rn百度谷歌都搜索了,网友说是系统引导文件出错,要再安装<em>一个</em>winpe,感觉好复杂,有没有更简单的方法?
卸载Proteus后再次安装出错解决办法
相信有人和我一样,在<em>卸载</em>Proteus后<em>再次</em>安装时会跳过下图这一步 然后安装完了注册时会弹出修改注册LICENCE失败,从而导致破解<em>不成功</em>,怎么办呢? 本人解决方法: 1、首先正常安装完了之后选择Licence Manager点开,点击右侧已经注册的Licence,再点击Remove,然后<em>卸载</em>Proteus; 2、进入安装Proteus文件夹:C:\Program
每天一个linux命令 —— dmesg
ubuntu中测试HelloWorld驱动,printk没有输出,可通过demsg命令来从日志中查看 1,命令格式 功能说明:显示开机信息。    语  法:<em>dmesg</em> [-cn][-s ]    补充说明:kernel会将开机信息存储在ring buffer中。若是开机时来不及查看信息,可利用<em>dmesg</em>来查看。开机信息亦保存在/var/log目录中,名称为<em>dmesg</em>的
IVMRMixerControl9为什么QueryInterface不成功呢?
IBaseFilter* pVmr = NULL;rnrn // Create the VMR and add it to the filter graph.rn HRESULT hr = CoCreateInstance(CLSID_VideoMixingRenderer, NULL,rn CLSCTX_INPROC, IID_IBaseFilter, (void**)&pVmr);rnrn rnrnrn if (SUCCEEDED(hr)) rn rn hr = m_pGB->AddFilter(pVmr, L"Video Mixing Renderer");rn if (SUCCEEDED(hr)) rn rn // Set the rendering mode and number of streams. rn IVMRFilterConfig* pConfig;rn rn hr = pVmr->QueryInterface(IID_IVMRFilterConfig, (void**)&pConfig);rn if( SUCCEEDED(hr)) rn rn pConfig->SetRenderingMode(VMRMode_Windowless);rn pConfig->Release();rn rnrn hr = pVmr->QueryInterface(IID_IVMRWindowlessControl, (void**)&m_pWC);rn if( SUCCEEDED(hr)) rn rn m_pWC->SetVideoClippingWindow(hWnd);rn rn rn rnrn hr = pVmr->QueryInterface(IID_IVMRMixerControl9, (void**)&m_pMixerC);rn if (FAILED(hr))rn rn AfxMessageBox("error");//就在错误!总是FAILEDrn rnrn================================================rn我想用dshow来抓图,并实现图象的色度,亮度调节 ,想用IVMRMixerControl9接口的rnSetProcAmpControl 来做!得QueryInterface总是<em>不成功</em>,是什么原因呢?rn或者哪位知道可以用VC来做摄像头抓图并可以调节亮度的例子或代码,多谢了~
为什么取消灰化不成功呢???
void CHuihuaApp::OnRestore( )rnrnrn CMenu* pMenu;rn pMenu = AfxGetMainWnd() -> GetMenu();rn pMenu->EnableMenuItem( ID_cap, MF_BYCOMMAND | MF_ENABLED );rnrnrn代码目的很简单,ID_cap是<em>一个</em>初始为灰化的按钮,我现在的目的是按<em>一个</em>键后,这个键可以响应为取消该按钮的灰化属性,经过测定,该程序是可以响应的,但灰化就是<em>不成功</em>,也就是说这三句有问题,这个<em>模块</em>本身就这三句的,大家看看这三句有问题吗?
datagrid+ado为什么添加不成功呢?
Dim CN As New ADODB.ConnectionrnDim RS As New ADODB.RecordsetrnCN.CursorLocation = adUseClientrn CN.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & App.Path & "\xx.mdb"rn RS.Open "select * from xsxx order by xh", CN, adOpenStatic, adLockBatchOptimisticrn rn RS.AddNewrn RS.Updatern rn Set DataGrid1.DataSource = RSrn DataGrid1.Refreshrn rn RS.Closern CN.Closernrn从datagrid中添加记录,可<em>不成功</em>,高手帮忙看一下!
为什么会和创建对象的语句是一样的呢 ?
class Testrnrn public static void main(String[] args)rn rn Queue q=new Queue();rn Producer p=new Producer(q);rn Consumer c=new Consumer(q);rn p.start();rn c.start();rn rnrnrnclass Producer extends Threadrnrnrn Queue q; //rn Producer(Queue q)//这里<em>为什么</em>会与语句rn //Queue q=new Queue();rn this.q=q;//一样呢 rn //rn public void run()rn rn rn for(int i=0;i+q.get());rn rn rnrnclass Queuernrn int value;rn public void put (int i)rn rn value=i;rn rn public int get()rn rn return value;rn rn rn
访问EXCEL为什么不成功呢?
我在一本书上看到了<em>一个</em>关于直接访问EXCEL的实例rn代码是这样的:rn rn rn rn rn rn rn rn 请填写显示的列数:rn rn rn rn Excel路径:rn rn rn rn rn rn rn rnrn rn代码应该没问题,因为这本书是比较好的一本书rn但是我运行时,当输好信息后总是提示:rn错误:ActiveX部件 不能创建对象:Excel.Applicationrn难道还要装什么组件才能运行,遇到过这种问题的前辈请指点迷津啊,rn在线等~~多谢指点。。。。
为什么指定权限不成功呢?
rn //创建新用户tw,密码为tw 并且给定访问数据库UserManger的所有权限 rn grant all parvileges on UserManger.* to tw@'%' identified by 'tw' rnrn 但是在mysql数据库的user表中,用户'tw'的所有权限都是N,<em>为什么</em>会这样呢rnrnrn谢谢!
为什么我操作后网页后 thinkPHP框架自己会生产一个users模块啊、
![图片说明](https://img-ask.csdn.net/upload/201606/18/1466256514_785665.png)rn·····································································rn![图片说明](https://img-ask.csdn.net/upload/201606/18/1466256524_781657.png)
为什么点击模态窗口里的链接会打开一个新页面呢?
我不是要提交数据,仅仅是点击模态窗口里的<em>一个</em>链接(这种),都会弹出<em>一个</em>新窗口,即使我写target='_self'也不行。到底怎么回事啊?
为什么在编译bpl里不成功
问题:我同时打开两个delphi 7,<em>一个</em>用来作为主程序来调用bpl。<em>一个</em>用来调试bpl,现在以现了<em>一个</em>问题:就是当我F9来执行主程序的时候,没问题关闭了主程序后再编译bpl时就会出错:could not create output file + 路径rnrn 我把bpl释放放到了destroy里,就算我删除了生成的bpl等文件也是不行,在option里我也添加了路径还是不行。不知道是<em>为什么</em>,还是没的释放完全。rn 要是我关闭了打开主程序的delphi 7 程序,那么这样编译就没有问题了。
嵌入式驱动程序---简单模块加载卸载测试
步骤一:新建文件夹mkdir mymodule 进入编辑器gedit mymodule.c文件 #include &lt;linux/init.h&gt; #include &lt;linux/module.h&gt; MODULE_LICENSE("GPL"); static int __init my_module_init(void) { printk("my first m...
odoo缓存加载,数据库,卸载模块
odoo能把装过<em>模块</em>自动<em>加载</em>进缓存,所有有些改动没效果 数据库名字重复会报找不到<em>模块</em>对象,或者创建表<em>不成功</em> <em>模块</em>名字重复创建表也会<em>不成功</em> <em>卸载</em><em>模块</em>不能在后台直接把<em>模块</em>删了,odoo数据库会记录安装的<em>模块</em>到数据库自己的里面。在网页上删除了后在在odoo里把<em>模块</em>删除了...
我用ADO连接数据库后,用recordset打开一个表,为什么recordcount的返回值是-1呢?
不用怀疑数据库里有没有记录
为什么我的recv函数会这样呢。
我get<em>一个</em>大约15k左右的index.htmlrnrn然后recv。rn我已经设置了足够大的buffer,但它还是不能一次读取出来,rn得分好几次才能读出来?而且recv一次读的数据量并不总是相同。rnrn这是什么原因呢?那位高手知道得帮帮忙!rn用什么方法解决好?rnrn //bow
为什么我的会显示未定义呢
[code=c][/code]class timernrnpublic:rn float setHours(float amount);rn float setMinutes(float amount);rn float setSeconds(float aomunt);rn float timeInHours(float firsttime, float secondtime, float thirdtime);rn float timeInMinutes(float firsttime, float secondtime, float thirdtime);rn float timeInSecond(float firsttime, float secondtime, float thirdtime);rnprivate:rn float hour;rn float minute;rn float second;rn;rnrn#include "Time.h"rnrnfloat time::setHours( float amount )rnrn return hour = amount;rnrnrnfloat time::setMinutes( float amount )rnrn return minute = amount;rnrnrnfloat time::setSeconds( float amount )rnrn return second = amount;rnrnrnfloat time::timeInHours( float firsttime, float secondtime, float thirdtime )rnrn return firsttime+secondtime/60+thirdtime/3600;rnrnrnrnfloat time::timeInMinutes( float firsttime, float secondtime, float thirdtime )rnrn return firsttime*60+secondtime+thirdtime/60;rnrnrnfloat time::timeInSeconds( float firsttime, float secondtime, float thirdtime )rnrn return firsttime*3600+secondtime*60+thirdtime;rnrn其中的hour和minute和second显示未定义
为什么我这一段代码会不行呢?
gettickcount出错啊rnundeclared identifier:'gettickCount'rngettickcount在那里定义的啊rnrnrnrnrnusesrn Forms,rn Unit_login in 'Unit_login.pas' Form1,rn Unit_main in 'Unit_main.pas' Form2,rn Unit_welcom in 'Unit_welcom.pas' Form3;rnrn$R *.RESrnrn var mydate :Tdatetime;rnbeginrn form3:=TForm3.create(application);rnrn form3.show;rnrn form3.update;rn mydate:=GetTickCount;rn while((GetTickCount-mydate) / 1000 ;rnrn Application.CreateForm(TForm1, Form1);rnrn form3.Close;rnrn form3.free;rnrn Application.Run;rnrnend.rnrnrn
我想不通为什么会这样呢!
奇怪奇怪,我怎么连不上ACCESS2000,DataGrid控件数据不能出现,也没报错!我也有引用ADO2.5。我把mdb转换为access97,数据却能显现。rn呈上源码。后来我又生成另外<em>一个</em>程序,用ADODC控件连接却能连上access2000,控件生成的字符串也和下面的相同。请问这是什么原因rnPrivate Sub Form_Load()rnDim Cnn As New ADODB.ConnectionrnDim Tbl As New ADODB.RecordsetrnCnn.Open "Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" & App.Path & "\db2.mdb;Persist Security Info=False"rnWith Tblrn.CursorType = adOpenKeysetrn.LockType = adLockOptimisticrn.Open "user", Cnn, , , adCmdTablernEnd WithrnSet DataGrid1.DataSource = TblrnEnd Subrn
我这段程序为什么会报错呢?
代码如下:rn[code=PHP]rnalert('登陆信息填写不完整!请返回重新填写!');history.go(-1);";rn exit;rn rn if ($vertifycode != $_SESSION['VCODE'])rn rn echo " ";rn exit;rn rn $sql = "select * from Admin where name = '".$username."' and password = '".md5($password)."'";rn $result = mysql_query($sql);rn $counts = mysql_num_rows($result); rn if ($counts == 0 )rn rn echo " ";rn exit;rn else rn header('location:index.php');rn $_SESSION['username'] = $username;rn rnrn?>rn[/code]rn错误如下:rnrn[size=14px][color=#FF0000]Warning: Cannot modify header information - headers already sent by[/color][/size]rnrn
为什么我的fill会出错呢?
代码如下rnSqlConnection mycon=new SqlConnection("Initial Catalog=classtable;Data Source=localhost;Integrated Security=SSPI;");rnSqlDataAdapter custDA = new SqlDataAdapter("SELECT ClassName FORM Class",mycon);rnDataSet ds=new DataSet();rncustDA.Fill(ds);rn完了编译到custDA.Fill(ds)语句时就报错。改了半天没结果,请帮我看看究竟有什么问题,数据适配器究竟要怎么用呢?
我这段代码为什么会出错呢?
void __stdcall EnumGroup(TCHAR* pszServerName)rnrn ...rn NET_API_STATUS nStatus;rn DWORD dwLevel = 1;rn PLOCALGROUP_INFO_1 pBuf = NULL;rn DWORD Read=0, Entry=0, Resume=0;rnrn nStatus = NetLocalGroupEnum(pszServerName, dwLevel, (LPBYTE*)&pBuf,rn MAX_PREFERRED_LENGTH, &Read, &Entry, &Resume);rn ...rn提示rn[C++ Error] main.cpp(28): E2034 Cannot convert 'char *' to 'const wchar_t *'rnrn[C++ Error] main.cpp(28): E2342 Type mismatch in <em>parameter</em> 'servername' (wanted 'const wchar_t *', got 'char *')rn
为什么我的WINDOWSXP系统会呆滞呢?
我在桌面右键的时候,常常会出现系统呆滞的情况!rnrn点什么都没有用,只有按C+A+D把任务栏管理器调出来,然后才会正常!rnrn不知道这是<em>为什么</em>?希望各位大侠共享一下你们的经验!
为什么会这样呢???
...rnopen c_flight;rn fetch_loop:rn looprn fetch c_flight into rn v_TMP_RID,rn v_TMP_ALD,rn v_TMP_LBN,rn v_TMP_NME,rn v_TMP_ALC,rn v_TMP_FLN,rn v_TMP_SUF,rn v_TMP_DTE,rn v_TMP_DEP,rn v_TMP_DIF,rn v_TMP_05A,rn v_TMP_ARR,rn v_TMP_BPT,rn v_TMP_OPT,rn v_TMP_IDP,rn v_TMP_BDP,rn v_TMP_ANC,rn ...rn我跟踪数据发现,除了前5个变量有值外,其他后面的变量都是null.我在前面定义游标的时候,其中的select语句是正确的,可以查到表里面的数据啊.有碰到这种情况的朋友,请帮忙解答一下.
为什么会错呢????????????????????????????????????????????????????
在Interface单元中使用DsgnIntf,可编译时总说dsgnIntf.dcu找不到,可delphi6的帮助中可以找到.<em>为什么</em>,帮帮我.
为什么会这样呢?
我做了<em>一个</em>很简单的数据库连接rn可是调试的时候就弹出这样的错误:用户定义类型未定义.rn代码如下:rnDim mdbpath As StringrnDim Conn As ADODB.ConnectionrnDim Rs As ADODB.RecordsetrnPrivate Sub Command1_Click()rnConn.Open "Provider=sqloledb;" & _rn "Data Source=" & servername & ";Initial Catalog=" & database % ";User Id=" & useid & ";Password=" & passwd & "; "rn rnEnd Sub
为什么会这样呢
我帮人用ASP.NET/MSSQL做<em>一个</em>网站(www.hr-shanghai.com,还没有做完),在CSDN首页的广告上的时创网络租了一款支持ASP.NET/MSSQL的虚拟主机,<em>为什么</em>有时候点击站内链接,忽然变慢,最后跳到其他网站的网页上了(该站点也是位于同一台服务器上他们的客户网站),刷新一两次就恢复正常。怎么回事怎么回事?rn是他们的IIS设置有问题?还是域名解析有问题?还是我自身的C#程序有问题(里面用较多的SESSION,相不相关)?rn谢了rn
为什么会出错呢?
压缩数据库rnrn错误类型:rnMicrosoft JET Database Engine (0x80004005)rn尝试打开的数据库已经被机器 'MY-TOMATO' 上的用户 'admin' 以排它的方式打开。当数据库可使用后请再试一次。rnrnrn调用页面rnrn Dim dbpath,boolIs97rn dbpath = Request("dbpath")rn boolIs97 = Request("boolIs97")rn 'call CompactDB(dbpath,boolIs97)rn response.write(CompactDB(dbpath,boolIs97))rnrnrnrnrn'以下为函数rnFunction CompactDB(dbPath, boolIs97) '备份ACCESS数据库函数 dbPath=数据库路径(实际或虚拟路径) boolIs97=[bool]ACCESS数据库的版本(true=97 )rn Dim fso, Engine, strDBPathrn if mid(dbPath,2,1)<>":" then '查看数据库路径第二个字符是否为:如果是就是绝对路径了...否则为虚拟.rn dbPath=server.mappath(dbPath)rn end ifrnrn strDBPath = left(dbPath,instrrev(DBPath,"\"))rn Set fso = CreateObject("Scripting.FileSystemObject")rn If fso.FileExists(dbPath) Then'判断文件是否存在rn Set Engine = CreateObject("JRO.JetEngine")rn If boolIs97 = "True" Then'判断ACCESS数据库的版本 97rn Engine.CompactDatabase "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & dbpath,"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & strDBPath & "temp.mdb;" & "Jet OLEDB:Engine Type=4"rn Else'判断ACCESS数据库的版本 Access 2000、2002、2003rn Engine.CompactDatabase "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & dbpath,"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & strDBPath & "temp.mdb"rn End Ifrn fso.CopyFile strDBPath & "temp.mdb",dbpathrn fso.DeleteFile(strDBPath & "temp.mdb")rn Set fso = nothingrn Set Engine = nothingrn CompactDB = " "'返回正确执行信息rn Else '文件不存在rn CompactDB = " "'返回错误执行信息rn End IfrnEnd Function
为什么会乱码呢...
请问一下是不是用脚本写的FORM提交的中文都为乱码?("测试"为"娴嬭瘯")rnrn我现在就这样,不知道有什么方法可以解决么?
为什么会拒绝访问呢?
java.security.AccessControlException: access denied (java.awt.AWTPermission createRobot)rn at java.security.AccessControlContext.checkPermission(Unknown Source)rn at java.security.AccessController.checkPermission(Unknown Source)rn at java.lang.SecurityManager.checkPermission(Unknown Source)rn at java.awt.Robot.checkRobotAllowed(Unknown Source)rn at java.awt.Robot.init(Unknown Source)rn at java.awt.Robot.(Unknown Source)rn at com.hyi.cake.applet.OrderReport.panelInit(OrderReport.java:415)rn at com.hyi.cake.applet.OrderReport.init(OrderReport.java:870)rn at sun.applet.AppletPanel.run(Unknown Source)rn at java.lang.Thread.run(Unknown Source)rnrnrn出错的代码段为:rnrn415处:rn//move mouse out of the applet and backrn try rn Robot rb = new Robot();//415rn rb.mouseMove(0, 0);rn rb.mouseMove(mouseX, mouseY);rn catch(AWTException e)rn e.printStackTrace();rn rnrnrn870处:rn public void init() rn goodsPanelInit();rn tableInit();rn scrollPanelInit();rn panelInit();//870rnrn rnrn大哥大姐帮我看看,这个是怎么回是啊?
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