## 去参团 **简要描述：** * 去参团 **请求URL：** * /group_buy/procedure/attend **请求方式：** * POST **参数：** | 参数名 | 必选 | 类型 | 说明 | | --- | --- | --- | --- | | school_id | 是 | int | 学校id | | activity_id | 是 | string | 商品活动id | | user_id | 是 | int | 用户id | | token | 是 | string| 登录token | | tm_id| 是 | int | 团单id | **返回示例** ~~~ { "code":200, "msg":"", "data":{ "appId" : "", "timeStamp" : "", "nonceStr" : "", "signType" : "", "package" : "", "paySign" : "", } } ~~~