小白安装Mysql求助~QAQ [问题点数:50分]

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小白求助QAQ,从二叉树到二叉搜索树的类的继承,不知道哪错了
如图,root是在Binary_tree里定义的,然后Search_tree继承了Binary_tree,可是在Search_tree里用到root的时候,编译器说root没有定义,,这是为什么呢,,[face]monkey:19.gif[/face]rn[img=https://img-bbs.csdn.net/upload/201905/28/1559040220_24078.png][/img][img=https://img-bbs.csdn.net/upload/201905/28/1559040220_212024.png][/img][img=https://img-bbs.csdn.net/upload/201905/28/1559040220_405129.png][/img]
技术小白的博客------mysql的安装
资源下载 官网下载MySQL 5.5 下载地址:https://dev.mysql.com/downloads/mysql/5.5.html#downloads <em>安装</em>步骤 1、打开下载的mysql-5.5.58-winx64.msi 2、点击next 3、 4、我选择的是默认<em>安装</em>,过程比较简单 5、按照默认一直点下去… 6、运行,输入密码,进入如下页面 tips 错误:双击运行,一闪而过 解决...
求助安装MySQL出现问题!
我以前<em>安装</em>过MySQL,没有什么异样,但是昨天重装系统后再次<em>安装</em>MySQL(因为<em>安装</em>了多少遍了,所以步骤应该没有问题)出了一个不大不小的问题:rn每当MySQL的系统服务启动时,总是在<em>安装</em>分区的根目录(比如我的MySQL<em>安装</em>在E:\MySQL,那么根目录就是E:\)生成两个随机名字的文件,比如tks.1和tks(反正是随机的,每次启动文件名都不同)而且这两个文件无法删除!无法读取!无法访问!只有停止MySQL的服务才自动消失,启动服务就又出现了(名字随机),无论我下载哪个版本的MySQL都是如此!(官方网站下载)请问这是怎么回事?有没有人能帮帮我。rnrn系统:rnwin2000Sever SP4(以前一直好好的)
[求助]安装mysql失败
之前<em>安装</em>过后来重装系统之后就在控制面板卸载了,但是现在要装的时候在配置的最后一步一直是未响应,装了好几次都这样[img=https://img-bbs.csdn.net/upload/201312/22/1387696319_654888.png][/img]
安装MySQL出现问题,求助
下载了MySQL,<em>安装</em>时遇到这个问题rn[img=https://img-bbs.csdn.net/upload/201410/28/1414504043_499418.png][/img]rn百度搜索出结果可能是重新<em>安装</em>MySQL导致的rn用360软件管家删除后重新<em>安装</em>还是出现同样的现象rn用网上的一些方法结果出现rn[img=https://img-bbs.csdn.net/upload/201410/28/1414504341_585737.png][/img]rn[img=https://img-bbs.csdn.net/upload/201410/28/1414504364_400298.png][/img]rn可能是哪里操作出错吧,求大神指导,越详细越好,最好有图文,拜托。
ceontOS6.2安装MYSQL求助
<em>安装</em>mysql时出现一下提示:rnrn[root@localhost mysql5.5]# rpm -ih MySQL-server-5.5.25-1.linux2.6.i386.rpm rn########################################### [100%]rn file /usr/share/mysql/charsets/README from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/Index.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/armscii8.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/ascii.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/cp1250.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/cp1251.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/cp1256.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/cp1257.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/cp850.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/cp852.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/cp866.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/dec8.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/geostd8.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/greek.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/hebrew.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/hp8.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/keybcs2.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/koi8r.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/koi8u.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/latin1.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/latin2.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/latin5.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/latin7.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/macce.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/macroman.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/charsets/swe7.xml from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/czech/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/danish/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/dutch/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/english/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/estonian/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/french/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/german/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/greek/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/hungarian/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/italian/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/japanese/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/korean/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/norwegian-ny/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/norwegian/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/polish/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/portuguese/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/romanian/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/russian/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/serbian/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/slovak/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/spanish/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/swedish/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn file /usr/share/mysql/ukrainian/errmsg.sys from install of MySQL-server-5.5.25-1.linux2.6.i386 conflicts with file from package mysql-libs-5.1.52-1.el6_0.1.i686rn[root@localhost mysql5.5]# service mysql startrnmysql: unrecognized servicern[root@localhost mysql5.5]# mysqlrnERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)rnrn各位知道是什么原因引起的吗?rn
小白求助
为什么我配置好Java的环境变量后,在命令指示符验证是否成功的时候Javac和Java都没有问题,但Java-version却不是内部命令?
小白,求助
[code=C#] rn stock 类rn/// rn /// 下载状态rn /// rn public enum Ds 初始 = 0, 成功 = 1, 失败 = 2 rnrn /// rn /// 转换状态rn /// rn public enum Ts 初始 = 0, 成功 = 1, 失败 = 2 rnrn /// rn /// 来源网站rn /// rn public enum SourceWebsite 理想论坛, 海风股份论坛, 迈博汇金, 汗牛网, 渐飞数据, 人大经济论坛, 赢富阁, 正点财经, 讯嘉数据, 百思社区 rnrn /// rn /// 论坛表rn /// rn public class Stockrn rn public Stock()rn rn Tstatus = new Dictionary();rnrn Tstatus.Add("默认", Ts.初始);rnrn Reports = new List() new Report Dstatus = Ds.初始 ;rn rnrn /// rn /// IDrn /// rn public SourceWebsite ID get; set; rnrn /// rn /// 信息集合rn /// rn public List Reports get; set; rnrn /// rn /// 转换状态集合rn /// rn public Dictionary Tstatus get; set; rnrn rnrn /// rn /// 信息集合rn /// rn public class Reportrn rn /// rn /// 研报标题rn /// rn public string Title get; set; rnrn /// rn /// 下载网址rn /// rn public string Uri get; set; rnrn /// rn /// 下载时间rn /// rn public DateTime DownloadTime get; set; rnrn /// rn /// 下载状态rn /// rn public Ds Dstatus get; set; rnrn /// rn /// 路径rn /// rn public string Path get; set; rn rnrn[/code]rn[code=C#]rn代码 rn private List test()rn rn List list = new List();rnrn stock.ID = SourceWebsite.百思社区;rn stock.Reports = new List() new Report() Title = "测试1", Dstatus = Ds.成功, DownloadTime = DateTime.Now, Path = "f", Uri = "www.baidu.com" ;rn stock.Tstatus.Add("测试1", Ts.成功);rn list.Add(stock);rn return list;rnrnrn[/code]rn想问下 dataGridView如何绑定,直接绑定test()方法,不行啊rn效果如下rn[img=http://hi.csdn.net/attachment/201201/9/0_1326072230P3PS.gif][/img]rn我的Reports没显示出来,Tstatus也显示的集合rn
小白求助!!!!!!!!!!!!!!!!
[code=javascript]rn$.ajax(rn type: "POST",rn url: "../login_chk.php",rn dataType: "text",rn data:"user":user,"pwd":pwd,rn beforeSend: function()rn $("#login_error").html("登录中,请稍候...");rn ,rn success: function(data)rn alert(data);rn if(data == "1")rn $("#login_error").html(user + "欢迎回来!");rn window.location.href='login.php';rn else rn $("#login_error").html("用户名或密码错误!");rn return false;rn rn ,rn error: function(e)rn alert(e);rn rn );rn[/code]rnrn[code=php]rnquery($sql);rn rn if($result && $row=$result->fetch_assoc())rn echo '1';rn $_SESSION["uid"]=$row["uid"];rn $_SESSION["username"]=$row["username"];rn rn rn $result->free_result;rn $db->close;rn?>rn[/code]rnrn第一次发帖。。。。。。。。。。。。。。。。rn做的是用户登录,ajax取不到返回值貌似, beforeSend: function()能执行, success: function(data)不能。rnbeforeSend: function()执行后也面就直接跳转到login_chk.php去了,login_chk.php能输出1.rnalert在火狐中没有弹,在IE中 success: function(data)和error: function(e)都弹出object Object。rnrnrn!!!!!!!!!!!!!!!!!!!rn还有,js是怎么调试的??我F12进入调试器后找到login.js然后F11没反应,,,是按什么都没反应。。。。。
小白求助!!!
[code=SQL]rnrncreate table #r(customer int,amount decimal(12,2))rninsert into #rrnselect customer,sum(totalAmount) as amountrnfrom DM_DeliveryOrder arnwhere a.company in (select id from t)rn and convert(varchar(7),a.createTime,120) = convert(varchar(7),'2010-10-12',120)rngornrndeclare @id intrnset @id = 6rn;with t asrn(rn select id,parentIdrn from SM_Companyrn where id = @idrn union allrn select e.id,e.parentIdrn from SM_Company as e join t as f on e.parentId = f.idrn)rnrnselect * from #rrndrop table #rrnrnrn[/code]rnrn报错:对象名 't' 无效。rnrn应该如何写,将t作为临时表的查询条件。
小白求助~~
namespace 自制rockrnrn public partial class Form1 : Formrn rnrn //创建工作簿rn private HSSFWorkbook wb;rn //创建表rn private ISheet st;rn private IRow row;rn private ICell cell; rn private FileStream fileStream;rn private Data data1 = new Data();rn rn /// rn /// 初始化rn /// rn public Form1()rn rn InitializeComponent();rn rn rnrn private void Form1_Load(object sender, EventArgs e)//窗体载入rn rnrn InitialWorkBook("Book1.xls");rn ReadInitialFormXls("Sheet1");rn propertyGrid1.SelectedObject = data1;rnrn rn rn rn /// rn /// 读取一个Excel作为wbrn /// rn /// rn private void InitialWorkBook(string workBookPath)rn rn this.fileStream = new FileStream(workBookPath, FileMode.Open, FileAccess.Read);rn this.wb = new HSSFWorkbook(fileStream);rn rnrn /// rn /// 读取数据rn /// rn /// rn private void ReadInitialFormXls(string sheetName)rn rnrn //this.fileStream = new FileStream("Book1.xls", FileMode.OpenOrCreate, FileAccess.Read);rn //this.wb = new HSSFWorkbook(fileStream);rn wb.GetSheet(sheetName);rnrn data1.Number101 = this.GetCellNumberValue(2, 2);rn data1.Number102 = this.GetCellNumberValue(2, 3);rn data1.Number103 = this.GetCellNumberValue(2, 4);rn data1.Number201 = this.GetCellNumberValue(4, 2);rn data1.Number202 = this.GetCellNumberValue(4, 3);rn data1.Number203 = this.GetCellNumberValue(4, 4);rnrn rnrn /// rn /// 得到单元格的值rn /// rn /// rn /// rn /// rn private double GetCellNumberValue(int rowIndex, int cellIndex)rn rn HSSFFormulaEvaluator evaluator = new HSSFFormulaEvaluator(wb);rn st = wb.GetSheet("Sheet1");rn ICell icell = st.GetRow(rowIndex).GetCell(cellIndex);rn CellValue cellValue = evaluator.Evaluate(icell);rn return cellValue.NumberValue;rn rnrnrnrn这个项目是要读一个Excel中的值把他显示到propertygrid控件里。但是读到InitialWorkBook("Book1.xls")之后form1直接就出来了,后面那两句没执行。所以propertygrid里面啥都没有。。。rn到底是啥毛病啊,实在搞不明白了
小白求助~_~
Server 2012 Databasern目标:通过字段(字段名:FileType,内容多样,如.JPG/.DWG等)里固定文本(.JPG)对表格其他进行筛选删除,即删除字段FileType里非.JPG项所在行,大手子在哪里?[img=https://forum.csdn.net/PointForum/ui/scripts/csdn/Plugin/001/face/100.gif][/img]rn求带![img=https://forum.csdn.net/PointForum/ui/scripts/csdn/Plugin/001/face/84.gif][/img]
小白求助!!!
题目描述rn随着城市的发展公交车变成了人们日常生活中不可缺少的交通工具,而在高峰期,经常出现公车坐慢的情况。现在假定初始在第一站的时候公车上有k个人,以后每经过一站车上的人先下去一半ki/2(ki除2的整数部分),然后再上ki人,现在已知公车的限乘人数L,假定公车如果不能再上人就(即ki-ki/2+ki >L)的时候公车就开始不再站台停靠了直接开往终点站,求公车最后到达终点站时车上的人数。rn输入rn输入数据包括多个测试样例,每个测试样例包含1行,分别为站台的总数N(包含起点终点,起点终点不上下人),初始车上的人数k,和限乘的人数L(10=> n>0,100=>k,l=>1)。 输入数据以三个0 0 0为结尾。rn输出rn输出公车最后到达终点站时车上的人数。rn样例输入rn10 2 10rn10 0 10rn3 8 70rn0 0 0rn样例输出rn8rn0rn12rnrn#includernint main()rnrn int a[11];rn int i,n,k,l;rn while(scanf("%d%d%d",&n,&k,&l)!=EOF)rn rn if(n==0&&k==0&&l==0)rn break;rn if(k==0)rn rn printf("0\n");rn rn elsern rn a[0]=k;rn for(i=1;il)rn rn printf("%d\n",a[i-1]);rn break;rn rn rn if(i==n-1)rn printf("%d\n",a[n-1]);rn rn rn return 0;rnrnrn哪位大佬可以帮我看一看这个程序哪里有问题,为什么输入较大的数据时会出现错误的答案?rn
小白求助!
代码不知道有什么问题,输入2 17 18 会输出 -35rnrnrnrn#include rn#include rnint main()rnrn int a;rn float b,c=0;rn scanf("%d",&a);rn while(a--)rn rn scanf("%f",&b);rn c=c+b;rn rn b=c/a;rn printf("%.2f",b);rn
小白求助,关于MySQL的连接速度
前几天在eclipse下写了一个客户端连接mysql,发现连接要200毫秒才能完成;但是把代码嵌进一个jsp页面里,20-30毫秒就搞定了,请教各位达人这个是什么原因?
小白求助
代码如下:rnclass Addressrnrn String detail ;rn public Address(String detail)rn this.detail = detail ;rn rnrnclass User implements Cloneablernrn int age ;rn Address address ;rn public User(int age)rn this.age =age ;rn address = new Address("山东莱芜");rn rn public User clone()rn throws CloneNotsupportedExceptionrn rn return (User)super.clone() ;rn rnrnpublic class CloneTestrnrn public static void main(String[] args)rn throws CloneNotSupportedExceptionrn User u1 = new User(23) ;rn User u2 = u1.clone();rn System.out.println(u1 == u2) ;rn System.out.println(u1.address == u2.address) ;rnrn rn rnrnrnrnrnrn在eclipse中出现错误一直不知道如何修改?rn运行如下:Exception in thread "main" java.lang.Error: Unresolved compilation problem: rn The method clone() from the type User refers to the missing type CloneNotsupportedExceptionrnrn at CloneTest.main(CloneTest.java:27)rnrnrn
小白 求助
请问ajax 如何解析php传来的json数据。然后在html页面上显示出来 是放在一个div里面rn
小白 求助
各位大神我再卸载sql 2008 r2后,重装它在最后一步的时候,他老是提醒我搜索引擎失败,网上说是之前没有卸载干净,各位大神的看法是如何的?另外如果大家有Total Uninstall 6 请发个<em>安装</em>包给我吧 谢谢大家了。(已经在sql server 2008 r2上折腾了几天了[img=https://forum.csdn.net/PointForum/ui/scripts/csdn/Plugin/003/monkey/2.gif][/img])
小白 求助!!!
#includernmain()rnrn int type1,type2;rn scanf("%d %d",&type1,&type2);rn switch(type1)rn case 1:rn printf("Faint signals, barely perceptible,");rn break;rn case 2:rn printf("Very weak signals,");rn break;rn case 3:rn printf("Weak signals,");rn break;rn case 4:rn printf("Fair signals,");rn break;rn case 5:rn printf("Fairly good signals,");rn break;rn case 6:rn printf("Good signals,");rn break;rn case 7:rn printf("Moderately strong signals,");rn break;rn case 8:rn printf("Strong signals,");rn break;rn case 9:rn printf("Extremely strong signals,");rn break;rn rn rn switch(type2)rn case 1:rn printf("unreadable.");rn break;rn case 2:rn printf("barely readable, occasional words distinguishable.");rn break;rn case 3:rn printf("readable with considerable difficulty.");rn break;rn case 4:rn printf("readable with practically no difficulty.");rn break;rn case 5:rn printf("perfectly readable.");rn break;rn rnrn这个原题要求需要直接输入两个数 例如33rn可是这个运行之后只能输入一个数字之后按回车再输入另一个数字rn例如3rn 3rn<em>求助</em>大神
小白求助~~~
[img=https://img-bbs.csdn.net/upload/201606/16/1466036312_140401.jpg][/img]
小白求助。。。
Pack database of sqlite: /aaa/log/log_aaa_daili.sql.rnConnect to DAS for password...rnGOT PASSWORDrnBind is failed.rnFailed to listen on port: 8101.rnAAA failed to listen on port: 8101rnShutdown in vm_waitProcessEnd.rnDisconnect database 0.rnDisconnect database 1.rn--------------------------------------rnDone!rnReturn result: 0rnPDB is shutdown by vmmemlib.rn[root@iZ2u6u1eyrz7g0Z aaa]# rn 请问这个是什么意思,需要怎么解决啊?
小白求助求助 wince7
<em>求助</em><em>求助</em> rn wince7有没有哪位大神能发个<em>安装</em>包啊 ,折腾了好几天的wince7 不是这个报错就是那个报错,好不容易把vs2008给证上了,找不到相应的项目,已经开始怀疑人生了!rn 求大神指点明路!!!!![img=https://forum.csdn.net/PointForum/ui/scripts/csdn/Plugin/001/face/54.gif][/img]
OSX小白安装MySQL中出现的问题
mac下<em>安装</em>MySQL出现:Access denied for user 'root'@'localhost' (using password: YES) 原因: 初始密码为空 解决方案:http://dev.mysql.com/doc/refman/5.7/en/resetting-permissions.html 1、苹果->系统偏好设置->最下边点mysql 在弹出页面中 关
小白求助小白问题
一个button按钮 比如叫“添加”rnrn点击“添加”的时候按钮变成“移出” 点击移出的时候再变成“添加”rnrn怎么实现的 = =~~~!
小白求助,乌班图17.10安装有道词典
按照网上的教程,执行到第五步时出现问题,求指导[img=https://img-bbs.csdn.net/upload/201712/17/1513506144_807547.jpg][/img]
小白求助win10如何安装C++Builder XE7
如题所示,我新买的电脑主板支持win10。<em>安装</em>了几次CB XE7都不能正确<em>安装</em>。rn请问一下win10是不是不能<em>安装</em>该软件?rn如果能<em>安装</em>的话,有没有大神指点一下?
QAQ的圆
Problem Description Stone 在 QAQ 的桌子上发现了两个圆,由于不知道 QAQ 画它们有什么不可告人的秘密,Stone 决定拿来好好研究一下。 已知两个圆的半径相等,都为 r,两圆心的距离为 d,求两圆的面积交(即两圆重叠部分的面积)。 Input 输入数据有多组(数据组数不超过 1000),到 EOF 结束。 每组输入包括一行两个实数 r, d
快速排序QAQ
趁着手热,写一边快排;虽然我们在竞赛中会自己调用C++库函数sort;但是在面试的时候面试官很可能让你写一遍快排。 //定义一个数组为q void qsort(int q[],int l,int r) { if(l&gt;=r) return ; int x=q[l+r&gt;&gt;1],i=l-1,j=r+1; while(i&lt;j) { do i++;while(q[...
错误代码 QAQ
QAQ
博客搬家QAQ
CSDN越用体验越差。。。。自己也越来越忙。。。就不在这里更新了。。。 搬去这里了=&amp;gt;新博客 github =&amp;gt; github
求助QAQ:protected静态成员变量初始化 报错
[img=https://img-bbs.csdn.net/upload/201907/10/1562737101_493210.png][/img][img=https://img-bbs.csdn.net/upload/201907/10/1562737101_623972.png][/img]rnrn不明白为什么会报错?应该怎么改呢?rn在线等一个大佬[face]qq:50.gif[/face]
小白的MySQL,从零到精通(十五章)之第零章--安装MySQL
本文先为大家介绍Centos6.5及Windows下<em>安装</em>MySQL!!! 在 CentOS6.5下 这里大佬们有教程,我就不多说了哈!!! https://www.cnblogs.com/tianyalu/p/5045772.html 在Windows下<em>安装</em>MySQL 这里也用下大神的,很详细,且很清楚 http://blog.51cto.com/aiilive/2116476...
求助:linux下安装mysql失败
总是提示 Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)rn但是我查看/var/lib/目录下并没有mysql
Mysql 安装的时候出错求助!!
[img=http://i51.tinypic.com/6td921.jpg][/img]rnrn该怎么办??
QAQ的小游戏
描述 Recently,QAQ fell in love a small game,which simulates browser browsing web pages. It has three kind of operations: 1.BACK: Back to the previous page 2.FORWARD:Go to the next page 3.VISIT URL:Acces...
占位QAQ
233~
有感 QAQ
有感
寻找QAQ
有时我们需要计算一个字符串中某个特定序列出现的次数,例如某人很喜欢QAQ这个表情,想要在QAQAQYSYIOIWIN这样的一串字符串中找出有多少个QAQ(这三个字符可以不连接) ...
mysql小白求帮助
3个表分别为a,b,crn表a的sfzh字段对应b的sfzh,查到表b内的sex,age,corprn表b的corp对应表c的corp,根据前面表b的corp查到表c的name,name按creationtime倒叙排列然后取第一条rn需要查询显示表a全部字段,表b的sex,age ,表c的name
小白问题】mysql数据库连接
这是从网上抄的一段代码rn[code=C/C++]rn# include rn# include rn# include "winsock.h"rn# include "mysql.h"rn# pragma comment(lib,"libmySQL.lib")rn# include rn# include rnusing namespace std;rnint main()rnrn int i;rn MYSQL mysql; //数据库连接句柄rn mysql_init (&mysql);rn int ret;rn if(mysql_real_connect(&mysql,"localhost","root","pass","dbname",3306,NULL,0)) //连接数据库rn cout<<
写给小白的mysql入门教程
这篇文章主要是写给<em>小白</em>看的,从mysql基础为大家讲起。   mysql简介    1、什么是数据库 ? 数据库(Database)是按照数据结构来组织、存储和管理数据的仓库,它产生于距今六十多年前,随着信息技术和市场的发展,特别是二十世纪九十年代以后,数据管理不再仅仅是存储和管理数据,而转变成用户所需要的各种数据管理的方式。数据库有很多种类型,从最简单的存储有各种数
小白的-Mysql学习笔记
@MYSQL-8.0.13-winx64版本<em>安装</em>完成忘记密码无法登陆的解决方法(本人测试成功) <em>Mysql</em>-8.0.13版本的免密登录 网上有很多的版本,大多版本还是针对8.0以前的方法,个人找了很多,每个试了一下,整理了一下8.0.13版本确定可以成功的详细步骤。提前说明,我在过程中没有对 my.ini 配置文件做任何改动。后面步骤由于关的太快,忘记截图,成功的情况下不会有error的提示啦! ...
小白求教mysql 查询
[img=https://img-bbs.csdn.net/upload/201804/24/1524542231_228568.png][/img]rn表中有两条数据,现有需求,当send 和recvid交叉相等时(如图两条数据)rn只取一条时间最大的数据,如何写查询,求大神答疑~~
MYSQL小白的入门篇(一)
MYSQL<em>小白</em>的入门篇(一)读完这篇blog你将学到:查看、创建和删除数据库数据库中表的基本操作查看表 读完这篇blog你将学到: 1、查看、创建及删除数据库。 2、数据库中表的基本操作。 (1)创建表 (2)修改表 (3)删除表 3、查看表 查看、创建和删除数据库 1、查看数据库 show databases; 此语法会展示所有的数据库,包括mysql自带的数据库,以及用户后期创建的数据库。...
问个MYSQL小白问题
DELIMITER $$rnrnCREATE PROCEDURE `db`.`sp1`()rnrn BEGINrn START TRANSACTION;rn insert into table1....;rn insert into table2....;rn update table3....;rnrn COMMIT;rn END$$rnrnDELIMITER ;rn这样能控制如果insert table2出错时候insert table1回滚吗?update table3呢rn
小白的MySQL学习笔记
MySQL下载地址:https://dev.mysql.com/downloads/ mysql -u root -p 密码     连接数据库,exit 退出数据库 一、管理MySQL的命令 net start mysql #启动mysql服务 net stop mysql  #关闭mysql服务 1. use 数据库名:选择要操作的mysql数据库 2. 
数据库SQL2008小白求助
主要错误 0x80040E14,次要错误 25501rn> create table departmentrn (dept_name nvarchar(20),rn building nvarchar(15),rn buget numeric (12,2),rn primary key (dept_name));rn分析查询时出错。 [ Token line number = 4,Token line offset = 22,Token in error = , ]rnrn照着书上抄的,结果报错了,不知道什么原因,有没有懂行的,谢谢
asp 新手小白求助
rn 用户名 :rn rn rn 密 码:rn rn rn rn rnrnrn public void Button1_Click(object sender, EventArgs e)rn rn string username = this.username.Text;rn string pass = this.Password1.Value;rn rn if (string.IsNullOrEmpty(username) || string.IsNullOrEmpty(pass))rn rn Response.Write(" ");rn this.username.Focus();rn rn DataTable dtlogin = DBHelper.GetDataTable("SESECT FID,FPass FROM T_USER");rn for (int i = 0; i );rn Response.End();rn rn rn rnrn为什么跳转不了 是我哪里写错了嘛? <em>求助</em>
小白提问,求助
#include rn#include rn#include rnusing namespace std;rnrndouble fun(double,double);rndouble fun1(double,double);rnrnint main()rnrn cout<<>Cm;rn fun(In,Cm);rn fun1(Ft,Cm);rn cout<
kindle的应用,小白求助
kindle看pdf很不方便啊,字体的大小,翻页,等问题怎么解决啊??
Java小白day01 求助~~
<em>小白</em>最近正在学习JAVA,今天练习写的这段代码为什么不正确啊,格式和代码内容对照半天,自己没发现问题啊。。。。。求大神们指点!!!拜谢~~
小白求助!!!!!! 请不吝赐教
不显示删除回复显示所有回复显示星级回复显示得分回复 使用AJAX&PHP修改文件 我想实现这样的效果:在Txt1输入数据 点击button后将Txt1.value写入文件1.txtrnrnrn---------------------index.php-------------------------rnrn rn rn rn rn rn rn rnrnrn-----------------------------change.php------------------------------rnrn rn rn rnrnrnrn-------------------------1.txt------------------------rn
JavaSrcipt小白求助
有2个下拉框rn要根据下拉框选择的东西去改变一个图片、代码是这样的 rnrn rnrnrnrn rn rn rn 魔兽世界八大种族(图)rn rn rn rn rn --阵营选择--rn 联盟rn 部落rn rn rn rn rn rn rn --角色选择--rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rnrnrn各位大侠帮忙啊 感激不尽 请尽量用简单易懂的办法~因为我刚学JavaSrcipt
本人oracle小白求助
我用dbca删掉了原有的数据库orcl,并且新建了一个数据库test,数据库的名字和SID都是test,新建数据库后修改了.bash_profile文件rn# .bash_profilernrn# Get the aliases and functionsrnif [ -f ~/.bashrc ]; thenrn . ~/.bashrcrnfirnrn# User specific environment and startup programsrnrnPATH=$PATH:$HOME/binrnrnexport PATHrnalias sqlplus='rlwrap sqlplus'rnalias rman='rlwrap rman'rnexport ORACLE_BASE=/database/oraclernexport ORACLE_HOME=$ORACLE_BASE/product/11.2.0.1/testrnexport ORACLE_SID=testrnexport EDITOR=/usr/bin/vimrnexport PATH=$ORACLE_HOME/bin:$PATHrnexport NLS_LANG=AMERICAN_AMERICA.AL32UTF8rn~ rn~ rn~ rn将orcl修改为testrn修改后 log out 再次sqlplus / as sysdba;登录时提示bash: sqlplus: command not foundrn而且我发现product/11.2.0.1的目录下没有test目录
新人小白求助
怎样在一个空白对话框中实现:用鼠标点击任意四个点,通过这四个点画出一个矩形,并在这个矩形中读取图像,并按一定的像素宽将这个图像分割
c#winform小白求助
怎么设置progressbar和timer一起使用在打开那个窗口之后实现该窗口的progressbar在规定的时间里面走完
小白求助路由问题
detect pptp 这个路由命令该怎么用? 我看到都说用了这个命令 就解决华为路由 pptp无法使用的情况,rn<em>小白</em>请问 如何使用这个命令 在哪里输入?谢谢!!
汇编语言,小白求助
[img=https://img-bbs.csdn.net/upload/201409/08/1410149208_695446.png][/img]rn[img=https://img-bbs.csdn.net/upload/201409/08/1410149232_971764.png][/img]rn[img=https://img-bbs.csdn.net/upload/201409/08/1410149243_557527.png][/img]rnrn如表8.2。。。rn上面的代码段能否改为rnMOV AX,TEXTrnMOV DS,AXrnASSUME DS:TEXTrn????????????rnrn还有 关于 @CODE等符号rn是否为 @CODE EQU TEXTrn @DATA EQU DGROUP ;DGROUP GROUP DATA,CONST,BSS,STACK,rn @FARDATA EQU AGROUP ;AGROUP GROUP FAR_DATA,FAR_BSSrn????????????????????rn望高手指点!
小白求助路径问题
刚接触Unix,现在需要编译<em>安装</em>别人的一个程序PMVS,程序包放在rn/home/XXX/下载rn在程序的子文件夹中,编译makefile文件之前,需要修改makefile:rn# Your INCLUDE path (e.g., -I/usr/include)rnYOURINCLUDEPATH = rnrn# Your LDLIBRARY path (e.g., -L/usr/lib)rnYOURLDLIBPATH = rnrn这两个要填进去的变量我填成:rnYOURINCLUDEPATH = /usr/include:/use/local/includernYOURLDLIBPATH = /usr/lib:/use/local/librnrn编译不对,实在<em>小白</em>,请教应该怎么填?谢谢!rn
小白求助,关于VC6.0的
这是拍照按钮的代码,如何把它改为收到单片机发送的数字1就自动进行拍照?我是<em>小白</em>,请说的详细点,谢啦!!rnrnvoid CTestDlg::OnButStart() //拍照按钮rnrn // TODO: Add your control notification handler code herern HVSTATUS status = STATUS_OK;rnrn /*rn * 启动数字摄像机采集图像到内存rn */rn BYTE *ppBuf[1];rn ppBuf[0] = m_pRawBuffer;rn status = HVStartSnap(m_hhv, ppBuf,1);rn HVTriggerShot(m_hhv); // 外部触发采集, 高电平有效High.rn // SetTimer(1,1000,NULL); // 设置定时器,定时时间为6000ms.rn HV_VERIFY(status);rn if (HV_SUCCESS(status)) rn m_bStart = TRUE;rn rnrn
openstack小白求助
最近需要早Ubuntu12.04的基础上搭建openstack平台但是看了很多书逛了很多论坛都没有得到想要的结果,这里求大神指教[img=https://forum.csdn.net/PointForum/ui/scripts/csdn/Plugin/003/monkey/8.gif][/img]
小白求助~~51单片机串口通信
通过串口收发单个字符是可以实现的,但一到字符串就不行了rn就是如何让单片机接收一个字符串rn以下是代码rn[code=c]rn#includern#include"string.h"rn#define uchar unsigned charrn#define uint unsigned intrnrnbit flag=0;rnchar aa[5],a,b[]="m1";rnuchar k,m;rnrnvoid init()rnrn TMOD=0x20;rn TH1=0xfd;rn TL1=0xfd;rn TR1=1;rn REN=1;rn SM0=0;rn SM1=1;rn EA=1;rn ES=1;rnrnrnvoid main()rnrn init();rn for(k=0;k)rn flag=1;rn rn if(TI)rn rn TI=0;rn rnrn[/code]rnrn哪里有问题啊
MATLAB小白求助
[img=https://img-bbs.csdn.net/upload/201805/07/1525683617_644959.png][/img]rnrnwin8系统,VS2012是几年前装的了,大概率有问题。之前编译mat程序的时候一直提示找不到编译器,然后下载<em>安装</em>了minge64以后终于不再出现这个提示了,然后出现了新的提示,如图。rn求大佬指点,已经倒腾几天了。
Bitmap格式说明文档下载
Bitmap格式说明文档,里面包括了Bitmap、ICON的格式说明,讲述了WIN API中对格式的封装。 相关下载链接:[url=//download.csdn.net/download/lin1270/2422126?utm_source=bbsseo]//download.csdn.net/download/lin1270/2422126?utm_source=bbsseo[/url]
soft_setup下载
soft_setupsoft_setupsoft_setupsoft_setupsoft_setupsoft_setupsoft_setupsoft_setupsoft_setup 相关下载链接:[url=//download.csdn.net/download/qq1083521235/3735532?utm_source=bbsseo]//download.csdn.net/download/qq1083521235/3735532?utm_source=bbsseo[/url]
通信实验报告下载
通信原理实验是针对通信工程专业学生的实践教学环节,通过这一环节,可使学生巩固相关课程知识,增强动手能力,提高学生对通信系统的仿真技能。在强调基本原理的同时,更突出设计过程的锻炼,强化学生的实践创新能力。 相关下载链接:[url=//download.csdn.net/download/wchxiao2008/3947425?utm_source=bbsseo]//download.csdn.net/download/wchxiao2008/3947425?utm_source=bbsseo[/url]
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