我是初学者,看看这段程序哪不对
{
protected void Page_Load(object sender, EventArgs e)
{
char Destination;
if(Page.IsPostBack)
{
switch(Destination.Selecteditem.value)
{
case "北京":
Response.Write("你选择了北京");
break;
case "上海":
Response.Write("你选择了上海");
break;
case "深圳":
Response.Write("你选择了深圳");
break;
default:
Response.Write("你没有任何选择");
break;
}
}
}
}