中国大学MOOC下载报错

[wangkun321]

Traceback (most recent call last): File "D:\工作\MOOC\course-crawler-master\mooc.py", line 87, in main() File "D:\工作\MOOC\course-crawler-master\mooc.py", line 62, in main icourse163.start(args.url, config) File "D:\工作\MOOC\course-crawler-master\mooc\icourse163.py", line 175, in start get_resource(term_id) File "D:\工作\MOOC\course-crawler-master\mooc\icourse163.py", line 151, in get_resource parse_res_list(video_list, rename, parse_resource, playlist.write) File "D:\工作\MOOC\course-crawler-master\mooc\utils.py", line 337, in parse_res_list res.operation(*operator) File "D:\工作\MOOC\course-crawler-master\mooc\utils.py", line 56, in operation func(self) File "D:\工作\MOOC\course-crawler-master\mooc\icourse163.py", line 48, in parse_resource res_print(file_name + ext) UnboundLocalError: local variable 'ext' referenced before assignment

网站：中国大学MOOC

课程地址：（请在这里填写课程地址）

问题描述：（请在这里填写问题描述）

[StephanoGeorge]

#37