<!DOCTYPE?html>
<html>
<head>
<meta?charset="UTF-8">
<title>Insert?title?here</title>
<script?type="text/javascript">
function?numb(){
var?num1?=?parseInt(Math.round((Math.random())*20));
document.getElementById('num1').innerHTML?=?num1;
}
</script>
</head>
<body?onload="numb()">
<div>
<span?id="num1"></span>?+?<span?id="num1"></span>?=?<br>
</div>
</body>運行結果為啥只出現了一個數，問題出在哪了老鐵們
為啥只出現了一個數，問題出在哪了老鐵們？
可樂要加冰Xx
2017-09-09 18:16:07