All cities available in the store area

```javascript WXAPI.shopAreaCities() ``` ```json { "code": 0, "data": [ { "firstLetter": "h", "id": "330100000000", "jianpin": "hzs", "level": 2, "name": "Hangzhou City", "nameEn": "Hangzhou", "pid": "330000000000", "pinyin": "hangzhoushi" } ], "msg": "success" } ```