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<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
<form>中华民国那一年成立的<input type="text" nian=1912 value="" id="t1" name="t1" /> <input type="button" onclick="check()" id="t2" name="t2" value="检查答案" /></form>
</body>
</html>
<script>
function check()
{
var a=document.getElementById("t1");
var a1=a.value;
var a2=a.getAttribute("nian");
if (a1==a2)
{
alert("恭喜你回答正确")
}
else
{
alert("笨蛋")
}
}
</script>
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原文地址：http://www.cnblogs.com/zhangdemin/p/5548411.html
