构造函数中输入
SetStyle(ControlStyles.AllPaintingInWmPaint |ControlStyles.UserPaint |ControlStyles.DoubleBuffer |ControlStyles.ResizeRedraw |ControlStyles.OptimizedDoubleBuffer,true);
构造函数中输入
SetStyle(ControlStyles.AllPaintingInWmPaint |ControlStyles.UserPaint |ControlStyles.DoubleBuffer |ControlStyles.ResizeRedraw |ControlStyles.OptimizedDoubleBuffer,true);