摘要：private string GetMD5Hash(string input) { System.Security.Cryptography.MD5CryptoServiceProvider x = new System.Security.Cryptography.MD5CryptoServiceProvider(); byte[] bs = System.Text.Encoding.UTF8.GetBytes(input); bs = x.ComputeHash(bs); System.Text.StringBuilder... 阅读全文

摘要：string checkCode = "1234";//1234随机数 int iwidth = (int)(checkCode.Length * 11.5); //封装 GDI+ 位图，此位图由图形图像及其属性的像素数据组成 .指定宽度和高度。以象素为单位 System.Drawing.Bitmap image = new System.Drawing.Bitmap(iwidth, 20); //封装一个 GDI+ 绘图图面。无法继承此类. 从指定的 Image 创建新的 Graphics Graphics... 阅读全文

摘要：客户端代码：unitUnit1;interfaceusesWindows,Messages,SysUtils,Variants,Classes,Graphics,Controls,Forms,Dialogs,IdBaseComponent,IdComponent,IdTCPConnection,IdTCPClient,IdHTTP,StdCtrls;typeTForm1=class(TForm)IdHTTP1:TIdHTTP;Button1:TButton;Button2:TButton;Memo1:TMemo;procedureButton2Click(Sender:TObject);pri 阅读全文

摘要：DWORDGetTickCount(void);1) 定义For Release configurations, this function returns the number of milliseconds since the device booted, excluding any time that the system was suspended.GetTickCountstarts at 0 on boot and then counts up from there.在Release版本中，该函数从0开始计时，返回自设备启动后的毫秒数（不含系统暂停时间）。For Debug con 阅读全文