json转js对象

<!DOCTYPE html>

<html>

    <head>

        <meta charset="UTF-8">

        <title></title>

    </head>

    <script type="text/javascript" src="scripts/jquery.js" ></script>

    <script type="text/javascript" >

    var str_json = '{"name":"张三", "age":19}';

　　var oJSON = eval('('+str_json+')');

　　function show(){

            alert(oJSON.name); //张三

        }

    </script>

    <body>

        <input onclick="show()" type="button" value="aaaa" />

    </body>

</html>
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