C#读取本地TXT数据源数据，在百度地图上标注 可以设置城市id,城市名字，坐标，地址，电话等信息 欢迎感兴趣用户下载学习-C# read local TXT data source data, in baidu map Can set the cities id, name, coordinates, address, telephone and other information Welcome interested users to download learning