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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>函数豹子问题</title>
</head>
<body>
</body>
</html>
你能跑过豹子吗？输入能或不能
：<input type="text" id="baozi" /><input type="button" value="能否跑过豹子" onclick="qiankun()"/>
<script>
function qiankun()
{
var baozi=document.getElementById("baozi").value
if(baozi!="")
{
if(baozi=="能")
{
alert("你比禽兽还禽兽。")
}
else if(baozi=="不能")
{
alert("你连禽兽都不如。")
}
else
{
alert("请输入有效内容！！！")
}
}
}
</script>