异常

try:
    year = int(input())
    print(type(year), year)
except ValueError:
    print('num')
except (ZeroDivisionError, AttributeError):
    print('za')
except Exception as e:
    print(e)
finally:
    print('finally')
# 自定义异常
try:
    raise NameError('helloError')
except NameError:
    print('ff')