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写法一:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<body>
<p id="demo"></p>
<script>
var text = '{ "name":"张三", "rank":"function () {return 5;}"}';
var obj = JSON.parse(text);
obj.rank = eval("(" + obj.rank + ")");
document.getElementById("demo").innerHTML = obj.name + " rank:" + obj.rank(); 
</script>
</body>
</html>

输出结果为:

张三 rank:5

写法二:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<body>
<p id="demo"></p>
<script>
var text = '{ "name":"张三", "rank":"function () {return 5;}"}';
var obj = JSON.parse(text);
document.getElementById("demo").innerHTML = obj.name + " rank:" + eval("(" + obj.rank + ")")(); 
</script>
</body>
</html>

输出结果为:

张三 rank:5





本文标签: 函数json