代码编辑器：
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<html>3
<head>4
<meta charset="utf-8">5
<title>简单教程( www.twle.cn )</title>6
</head>7
<body>8
<p>循环内嵌数组</p>9
<p id="demo"></p>10
<script>11
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var myObj, i, j, x = "";13
myObj = {14
"name":"公司",15
"num":4,16
"sites": [17
{ "name":"腾讯", "info":[ "腾讯QQ", "微信", "腾讯企业邮箱" ] },18
{ "name":"百度", "info":[ "百度搜索", "百度地图", "百度百科" ] },