微信小程序地图比例尺文档错误
https://developers.weixin.qq.com/miniprogram/dev/component/map.html#%E6%AF%94%E4%BE%8B%E5%B0%BA
如下图所示, 17和18 都为50m了,实际应该是18对应20m,19对应10m,20对应5m
https://developers.weixin.qq.com/miniprogram/dev/component/map.html#%E6%AF%94%E4%BE%8B%E5%B0%BA
如下图所示, 17和18 都为50m了,实际应该是18对应20m,19对应10m,20对应5m