```javascript
WXAPI.commonDays(startDay, days)
```
+ startDay 日期，格式如：2022-05-08，不传默认为今天
+ days 返回几天的数据
```json
{
"code": 0,
"data": [
{
"dayOfWeek": 6,
"dayOfWeekStr": "周五",
"day": "2022-06-24"
},
{
"dayOfWeek": 7,
"dayOfWeekStr": "周六",
"day": "2022-06-25"
},
{
"dayOfWeek": 2,
"dayOfWeekStr": "周一",
"day": "2022-06-27"
},
{
"dayOfWeek": 5,
"dayOfWeekStr": "周四",
"day": "2022-06-30"
},
{
"dayOfWeek": 2,
"dayOfWeekStr": "周一",
"day": "2022-07-04"
},
{
"dayOfWeek": 7,
"dayOfWeekStr": "周六",
"day": "2022-07-09"
},
{
"dayOfWeek": 6,
"dayOfWeekStr": "周五",
"day": "2022-07-15"
}
],
"msg": "success"
}
```
+ day 日期
+ dayOfWeek 周日到周六分别为1-7
+ dayOfWeekStr 是我们平时讲的星期几