///
/// 鼠标滚轮焦点设置
///
///
///
void FormMain_MouseWheel(object sender, MouseEventArgs e)
{
this.panel1.Focus();
}
//在页面初始时
MouseWheel += FormMain_MouseWheel;
在任何想控制panel的滚轮时及时的this.panel1.Focus();让panel获得焦点