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编译错误,请帮我找出原因
发表在Python图书答疑
2021-01-18 悬赏:2 学分
《Python项目开发案例集锦》第1章 学生信息管理系统
是否精华
是
否
版块置顶:
是
否
ID 名字 英语成绩 Python成绩 C语言成绩 总成绩
Traceback (most recent call last):
File "D:/python_study/Studentsmanagement.py", line 285, in <module>
main()
File "D:/python_study/Studentsmanagement.py", line 29, in main
show()
File "D:/python_study/Studentsmanagement.py", line 240, in show
show_student(student_new)
File "D:/python_study/Studentsmanagement.py", line 214, in show_student
str(info.get("english") + info.get("python") + info.get("c")).center(12)))
TypeError: unsupported operand type(s) for +: 'NoneType' and 'int'
Process finished with exit code 1