c# 如果已经给每个按钮的tag属性赋值了，想在运行时，点击各个按钮，都想得到每个按钮对应的tag值，怎么办

public Form1()
{
InitializeComponent();
this.button1.Click += new System.EventHandler(this.button_Click);
this.button2.Click += new System.EventHandler(this.button_Click);
}
private void Form1_Load(object sender, EventArgs e)
{
button1.Tag = "b1";
button2.Tag = "b2";
}
private void button_Click(object sender, EventArgs e)
{
Button b = (Button)sender;
string s = (string)b.Tag;
MessageBox.Show(s);

}

事件的参数sender 转成Button 如
Button btn = sender as Button
object tag=btn.Tag;
tag强制转成你定义的类型即可。

好像需要转化吧，我查查给你祥说........