<%@ Page Language="C#" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server">

public void pushup(int j, int p)
{
content.Value = j.ToString() + "+" + p.ToString();
}

</script><html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>无标题页</title>
</head>
<body>
<form id="form1" runat="server">
<img alt="aaa" src="1.gif" style="border-width: 0px;" onclick="pushup(0,0);" runat="server" />
<input id="content" type="text" runat="server" />
</form>
</body>
</html>
提示缺少对象?为什么?