我现在是这样写的
在class1里面
public class Class1
{
public string st;
public Button Citybutton;
public string showst()
{
return st;
}
public Class1()
{
Citybutton = new Button();
}
public void Citybutton_Click(object sender, EventArgs e)
{
st = "wertyu";
}
我现在是这样写的 在class1里面 public class Class1 { public string st; public Button Citybutton; public string showst() { return st; } public Class1() { Citybutton = new Button(); } public void Citybutton_Click(object sender, EventArgs e) { st = "wertyu"; } 在FOR