修改用户昵称 ~~~[api] post:/api/v3/merchant/user/nickname *string:nickname= 默认值#用户昵称 <<< success { "msg": "操作成功！", "url": "", "data": "", "count": 0, "status": "success" } <<< error { "msg": "操作失败！", "url": "", "status": "error" } ~~~