```javascript
WXAPI.nextRegionV2(pid)
```
+ pid 传父级的位置id
```json
{
"code": 0,
"data": [
{
"firstLetter": "h",
"id": "330100000000",
"jianpin": "hzs",
"level": 2,
"name": "杭州市",
"nameEn": "Hangzhou",
"pid": "330000000000",
"pinyin": "hangzhoushi"
},
{
"firstLetter": "n",
"id": "330200000000",
"jianpin": "nbs",
"level": 2,
"name": "宁波市",
"nameEn": "Ningbo",
"pid": "330000000000",
"pinyin": "ningboshi"
}
],
"msg": "success"
}
```