C#窗体源码,编译后只有6KB
//定义三个鼠标事件处理程序的委托关联
this.MouseDown +=new System.Windows.Forms.MouseEventHandler (this.MainForm_MouseDown);
this.MouseUp+=new System.Windows.Forms.MouseEventHandler(this.MainForm_MouseUp );
this.MouseMove+=new System.Windows.Forms.MouseEventHandler(this.MainForm_MouseMove);