案例:JSON案例     状态:可编辑再运行    进入竖版
 运行结果 
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>W3xue教程(w3xue.com)</title>
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</head>
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<body>
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<p>使用 for 循环访问数组:</p>
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<p id="demo"></p>
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<script>
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var myObj, i, x = "";
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myObj = {
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    "name":"网站",
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    "num":3,
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    "sites":[ "Google", "W3xue", "Taobao" ]
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};
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for (i = 0; i < myObj.sites.length; i++) {
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    x += myObj.sites[i] + "<br>";
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}
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document.getElementById("demo").innerHTML = x;
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</script>
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</body>
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</html>