```javascript
WXAPI.kanjiaHelpDetail(token, kjid, joiner)
```
+ token 登陆凭证
+ kjid 商品砍价设置接口返回的某次砍价活动的kjid
+ joiner 砍价活动发起人的用户编号
```json
{
"code": 0,
"data": [
{
"cutPrice": 4.66,
"dateAdd": "2021-12-12 10:56:44",
"goodsId": 6765,
"remark": "",
"uid": 2017654
}
],
"msg": "success"
}
```
+ cutPrice 帮砍的金额
+ remark 助力的时候留言信息