winform的lable中，当鼠标移动上去的时候就加有下划线并且同时能加粗？拜托高手！！！急

winform的lable中，当鼠标移动上去的时候就加有下划线并且同时能加粗？拜托高手！！！急

private void label1_MouseMove(object sender, MouseEventArgs e)
{
label1.Font = new Font(this.Font, FontStyle.Bold|FontStyle.Underline);
}
private void label1_MouseLeave(object sender, EventArgs e)
{
label1.Font = new Font(this.Font, FontStyle.Regular);
}

private void label3_MouseHover(object sender, EventArgs e)
{
this.label3.Font = new Font("宋体", 24, FontStyle.Underline);
}
private void label3_MouseLeave(object sender, EventArgs e)
{
this.label3.Font = new Font("宋体", 10);
}