报错代码如下：
2020-02-14 15:33:55,652 INFO: [7296030]类型口罩有货啦!马上下单 2020-02-14 15:33:55,653 INFO: 第[1/3]次尝试提交订单 2020-02-14 15:33:56,208 INFO: 购物车信息：{} 2020-02-14 15:33:56,525 ERROR: 7296030 添加到购物车失败 2020-02-14 15:33:59,133 ERROR: 订单结算页面获取异常：Exceeded 30 redirects. Exception in thread item_exist_7296030: Traceback (most recent call last): File "C:\Users\JMC-Per1recover\AppData\Local\Programs\Python\Python38\lib\threading.py", line 932, in _bootstrap_inner self.run() File "jd-automask_V1.py", line 761, in run is_item_removed(self.skuid) File "jd-automask_V1.py", line 795, in is_item_removed if buyMask(skuId): File "jd-automask_V1.py", line 480, in buyMask risk_control = get_checkout_page_detail() File "jd-automask_V1.py", line 363, in get_checkout_page_detail return risk_control UnboundLocalError: local variable 'risk_control' referenced before assignment Traceback (most recent call last): File "jd-automask_V1.py", line 822, in <module> auto_buy(inStockSkuid) File "jd-automask_V1.py", line 777, in auto_buy threads[j].join() #循环 join()方法可以让主线程等待所有的线程都执行完毕。 File "C:\Users\JMC-Per1recover\AppData\Local\Programs\Python\Python38\lib\threading.py", line 1011, in join self._wait_for_tstate_lock() File "C:\Users\JMC-Per1recover\AppData\Local\Programs\Python\Python38\lib\threading.py", line 1027, in _wait_for_tstate_lock elif lock.acquire(block, timeout): KeyboardInterrupt