```javascript
WXAPI.kanjiaDetail(kjid, joiner)
```
+ kjid 为上面接口中，读取商品的某个砍价设置的设置ID；
+ joiner 为发起本次砍价的用户的id
返回示例：
```json
{
"code": 0,
"data": {
"kanjiaInfo": {
"curPrice": 87.24,
"dateAdd": "2020-09-02 11:08:31",
"dateUpdate": "2021-04-01 15:34:38",
"goodsId": 6765,
"helpNumber": 3,
"kjId": 3,
"minPrice": 80,
"orderId": 848712,
"status": 2,
"statusStr": "完成",
"uid": 1351478
},
"joiner": {
"nick": "gooking（api工厂创始人）",
"avatarUrl": "https://dcdn.it120.cc/cuser/951/2021/07/15/309311d6-52a3-46a4-931c-6458aff42f58.jpg"
},
"helps": [
{
"nick": "angellee 🐰 🐒",
"uid": 1288170,
"dateAdd": "2021-03-09 10:45:31",
"avatarUrl": "https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83er52qNs1l8bjicdsqM3uKeic3FVEEgPBZ0tZjwZB9hrak0owMzQvSibiaVOwd60uZxeSoP11qVdmZe0wA/132",
"remark": "",
"cutPrice": 3.59
},
{
"nick": "gooking（api工厂创始人）",
"uid": 1351478,
"dateAdd": "2021-01-16 09:34:41",
"avatarUrl": "https://dcdn.it120.cc/cuser/951/2021/07/15/309311d6-52a3-46a4-931c-6458aff42f58.jpg",
"remark": "",
"cutPrice": 2.08
}
]
},
"msg": "success"
}
```