<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="JsTest._Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
<script type="text/javascript">
function checkname() {
var ssss = document.getElementById('txt').value;
if (ssss.length<=0) {
alert("内容为空！");
}
else {
alert(ssss);
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input type="button" id="btn" value="开始测试" onclick="checkname()"/>
<input type="text" id="txt" name="txts" />
</div>
</form>
</body>
</html>
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