版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/fanqingtulv/article/details/86061968
一，效果图。
二，代码。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JavaScript JSON</title>
</head>
<body>
<h2>为JSON字符串创建对象</h2>
<p id="demo"></p>
<script>
var text = '{"employees":[' +
'{"firstName":"John","lastName":"Doe" },' +
'{"firstName":"Anna","lastName":"Smith" },' +
'{"firstName":"Peter","lastName":"Jones" }]}';
obj = JSON.parse(text);
document.getElementById("demo").innerHTML = obj.employees[1].firstName + " " + obj.employees[1].lastName;
</script>
</body>
</html>
参考资料：《菜鸟教程》