简单问题，谁能正解，给满分！

Question

<%@ page language="C#"%>
<script language="c#" runat="server">
public void click()
{
Response.Write("Ok");
}
</script>
<form runat="server">
<button id="button1" runat=server OnServerClick="click">C#艺术编程</button>
</form>
为何出错，我改成onclick也没用！

Answer 1

应该是这样runat=“server“
也没用！

Answer 2

<button id="button1" runat=server OnServerClick="click">C#艺术编程</button>改成<asp:button id="button1" runat=server OnServerClick="click">C#艺术编程</asp:button>我晕

Answer 3

public void click(object sender, System.EventArgs e)
{
Response.Write("Ok");
}
<button id="button1" OnClick="click" runat="server">