需要用到一个插件json2.js下载地址为:http://ishare.iask.sina.com.cn/f/9897216.html
1.定义一个json数组
var jsonText = "[{\"lon\":116.4074,\"lat\":39.9046},{\"lon\":116.3054,\"lat\":39.8026},{\"lon\":116.2034,\"lat\":39.7006}]";
2.读取json数组
var linePoints = JSON.parse(jsonText);
3.引用json2.js
<script type="text/javascript" src="json2.js"></script>