1、首先在窗体上添加:imageList1,并导入图像(至少两张)
2、在button1上设置,ImageIndex 为 0
3、当鼠标在button1上移动时,产生事件:
private void button1_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
{
button1.ImageIndex = 1; 更换图像
}
Properties.Resources.xxxx