微信小程序地图和高德地图都是GCJ02类型数据，但是同样的数据，在绘制线条时，地图上显示有偏差。

定位数据

    [

        {"lng":115.027875,"lat":27.109915},

        {"lng":115.027907,"lat":27.109757},

        {"lng":115.029146,"lat":27.109786},

        {"lng":115.029119,"lat":27.109953},

        {"lng":115.028395,"lat":27.109944},

        {"lng":115.028234,"lat":27.109944},

        {"lng":115.028073,"lat":27.109934}

    ]