以下这段代码用来测试JSON内置对象在各个浏览器中的表现
<!DOCTYPE HTML>
<html>
<head>
<title>首页</title>
<meta charset="utf-8">
</head>
<body>
<script type="text/javascript">
document.write(JSON.stringify({a:1}));
</script>
</body>
</html>
<!DOCTYPE HTML>
