js json for的问题 for循环不出param_+key

发布网友 发布时间：2024-10-04 07:30

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共3个回答

热心网友 时间：2024-10-12 22:26

/*
如下：
*/
<script type="text/javascript">
<!--
obj={
"title": "title",
"pages": "13",
"count": 15,
"param_0": "0",
"param_1": "1",
"param_2": "2",
"param_3": "3",
"param_4": "4",
"param_5": "5",
"param_6": "6",
"param_7": "7",
"param_8": "8",
"param_9": "9",
"param_10": "10",
"param_11": "11",
"param_12": "12",
"param_13": "13",
"param_14": "14"
};

for (var key = 0; key <= obj.count; key++){
alert(eval("obj.param_"+key));
}
//-->
</script>

热心网友 时间：2024-10-12 22:23

我写的答案竟然说有什么不合法字符。够郁闷的，只能用图片发了，希望管理员看到后处理一下，为什么我写的文字发不出去。

热心网友 时间：2024-10-12 22:23

var obj={"title":"title","pages":"13","count":15,"param_0":"0","param_1":"1","param_2":"2","param_3":"3","param_4":"4","param_5":"5","param_6":"6","param_7":"7","param_8":"8","param_9":"9","param_10":"10","param_11":"11","param_12":"12","param_13":"13","param_14":"14"};

for (var key = 0; key <= obj.count; key++){

eval("alert(obj.param_"+key+")");
}
你试试这样，你的那句alert(obj[0].param_+key);意思是弹出obj[0].param_和key的和，和你要的意思不同，所以你要用eval来执行表达式