public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
this.button1.Enter += button_Enter;
this.button1.Leave += button_Leave;
this.button2.Enter += button_Enter;
this.button2.Leave += button_Leave;
//继续写其他的
}
void button_Leave(object sender, EventArgs e)
{
(sender as Button).BackColor = SystemColors.Control;
}
void button_Enter(object sender, EventArgs e)
{
(sender as Button).BackColor = Color.Red;
}
}