百度地图开发：字符串经纬度转为经纬度数组的解决方案

拼接过程

    var str = "116.387112,39.920977;116.385243,39.91306;116.394226,39.917988";//默认经纬度字符串;

    var PointArr = [];

    //将字符串分离成数组;
    var newArr = str.split(";");

    //将新的数组二次分离为百度坐标系;
    for (var i = 0; i