在javascript中Json字符串的解析

上代码：

 1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 2 <html xmlns="http://www.w3.org/1999/xhtml">
 3 <head runat="server">
 4     <title></title>
 5     <script src="jquery-1.4.1-vsdoc.js" type="text/javascript"></script>
 6     <script type="text/javascript">
 7         $(function () {
 8             var json = "{name:'成吉思汗',age:'90',content:'蒙古族'}";
 9             var obj01 = new Function("return" + json)();
10             $(".div").append('new Function("return" + json)()' + "<br/>");
11             $(".div").append(obj01.name + "<br/>");
12             $(".div").append(obj01.age + "<br/>");
13             $(".div").append(obj01.content + "<hr/>");
14 
15             var obj03 = eval("(" + json + ")")
16             $(".div").append(' eval("(" + json + ")")' + "<br/>");
17             $(".div").append(obj03.name + "<br/>");
18             $(".div").append(obj03.age + "<br/>");
19             $(".div").append(obj03.content + "<hr/>");
20         });
21         
22 
23     </script>
24 </head>
25 <body>
26     <form id="form1">
27     <div class="div">
28     </div>
29     </form>
30 </body>
31 </html>