class MyException(Exception):def __init__(self,msg):self.msg=msgdef __str__(self):return self.msgtry:print('start')raise MyException('this is a custom exception')##手動觸發(fā)會被Exception捕獲 except Exception as e:print(e) finally:print('end')

##ret start this is a custom exception end import time try:print('start...')time.sleep(10) except KeyboardInterrupt as e:##按ctrl+c會執(zhí)行這個語句塊print('you press ctrl+c') finally:print('end...')


myexception=MyException('231') print(hasattr(myexception,'msg'))#True print(hasattr(myexception,'msg1'))#False print(getattr(myexception,'__str__')())#231 setattr(myexception,'fun',lambda x:x) print(getattr(myexception,'fun')(1234))#1234 delattr(myexception,'fun')

?

try: l = ["a", "b"] int(l[2]) except (ValueError, IndexError) as e: pass

?

　　

轉(zhuǎn)載于:https://www.cnblogs.com/howhy/p/7828340.html

總結(jié)

以上是生活随笔為你收集整理的try....exception....finally的全部內(nèi)容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網(wǎng)站內(nèi)容還不錯，歡迎將生活随笔推薦給好友。