C#实现简单的Login窗口实例

public Form1(){ InitializeComponent(); //登录按钮 button1.Click += delegate {  this.DialogResult = DialogResult.OK;  this.Close(); }; //取消登录按钮 button2.Click += delegate {  this.DialogResult = DialogResult.Cancel; }; //窗体关闭 this.FormClosing += delegate(object sender, FormClosingEventArgs e) {  if (this.DialogResult != DialogResult.Cancel && this.DialogResult != DialogResult.OK)   e.Cancel = true; };}

[STAThread]tatic void Main(string[] args){ if (args.Length > 0)  MessageBox.Show(args[0]); Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false);  FrmLogin f = new FrmLogin (); if (f.ShowDialog() == DialogResult.OK) {  Application.Run(new Form3()); }}