68 - 自定义异常类

'''
Exception
'''

class MyException(Exception):
    pass

num = 12

if num >= 10:
    raise MyException('抛出异常')
print('正常执行')

---------------------------------------------------------------------------

MyException                               Traceback (most recent call last)

<ipython-input-4-b1e683127a7f> in <module>

      9 

     10 if num >= 10:

---> 11     raise MyException('抛出异常')

     12 print('正常执行')

MyException: 抛出异常

try:
    if num >= 10:
        raise MyException('抛出异常')
    print('正常执行')
except MyException:
    print('发生异常')

发生异常