为什么我刷新后,值还是不变?
单击按钮后label2出现测试两个字,我单击刷新后label2却不能出现初始状态了,还是有测试两个字,谁能详细的讲解一下这是为什么?
<script language="vb" runat="server">
sub page_onload(sender as object,e as eventargs)
if not ispostback then
label2.text=""
end if
end sub
sub Button1_Click(Sender as Object,e as EventArgs)
Label2.text="测试"
end sub
</script>
<html>
<head>
</head>
<body>
<form runat="server" action="test2.aspx" methed="post">
<p>
<asp:Button id="Button1" runat="server" Text="Button" onclick="Button1_Click"></asp:Button>
<asp:Label id="Label2" runat="server"/>
</p>
</form>
</body>
</html>