<html>
<body>
<h1>JSON.stringify 会删除对象中的任何函数</h1>
<p id="demo"></p>
<script>
var obj = { name: "Bill Gates", age: function () {return 62;}, city: "Seattle" };
var myJSON = JSON.stringify(obj);
document.getElementById("demo").innerHTML = myJSON;
</script>
</body>
</html>