kangshuai
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
</head>
<body>
      <script type="text/javascript">
                  a="{\'username\':\'张三\',\'sex\':\'男\'}";  -------------字符串为双引号
                  obj=eval(\'(\'+a+\')\');     ------------------转换为对象
                  alert(a);
      </script>
</body>
</html>

 

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