JS解决JSON

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1 http://blog.csdn.net/love__coder/article/details/7532616

<html><head><meta http-equiv="Content-Type" content="text/html; charset=gbk"/><script type="text/javascript">var smsTypeDesc = {"4":"回访短信","3":"邮件短信","aa":"测试短信"};function EnumaKey(){for(var key in smsTypeDesc){alert(key);}}function GetVal(){var key = prompt("请输入要查询的key","4");                        if("undefined"==typeof(smsTypeDesc)) return;if("undefined"==typeof(smsTypeDesc[key])){alert("输入的key:"+key+"， 在json对象中不存在！");return;}alert("您输入的key是："+key + "，该key所对应的值是："+smsTypeDesc[key]);}function GetValByKey(){alert(smsTypeDesc.aa);}</script></head><body>Json对象：<br/><pre>var smsTypeDesc = {"4":"回访短信","3":"邮件短信","aa":"测试短信"};</pre><input type="button" onclick="EnumaKey();" value="遍历smsTypeDesc所有key"/><input type="button" onclick="GetVal();" value="获取smsTypeDesc动态指定key的值"/><input type="button" onclick="GetValByKey();" value="获取smsTypeDesc key aa 所对应的值"/></body></html>

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