Buy a course

```javascript WXAPI.courseInfoBuyV2({ token: '000' }) ``` + token current user login credentials + courseId course ID + shopId selected store ID + sessionId selected session ID + name name + mobile mobile phone number + number purchase quantity interface return ```json { "code": 0, "msg": "success", "data": { "id": 1, "userId": 150, "uid": 100146836, "courseId": 130, "courseName": "Introduction to Programming - C Language", "pic": "https://dcdn.it120.cc/2025/11/03/3d97e916-664e-4b32-8c50-49ee6f029da4.jpg", "shopId": 1022852, "sessionId": 5, "status": 0, "name": "Liu Bei", "mobile": "13522233239", "number": 2, "orderNumber": "KC2511041123096626", "hxNumber": "KCFX2511040896257471", "payAmount": 0, "statusStr": "Pending payment" } } ``` + status -1 Closed; 0 Pending payment; 1 Paid; 2 Written off (used); 3 Expired; + statusStr Chinese description of status + orderNumber order number + hxNumber verification password + payAmount Amount to be paid + payBalance balance payment amount + payOnline online payment amount