所属网站分类: python基础 > 异常处理
我知道你能做到:
try: # do something that may fail except: # do this if ANYTHING goes wrong
你也可以这样做:
try: # do something that may fail except IDontLikeYouException: # say please except YouAreTooShortException: # stand on a ladder
但如果我想在两个不同的异常中做同样的事情,我现在能想到的最好的就是这样做:
try: # do something that may fail except IDontLikeYouException: # say please except YouAreBeingMeanException: # say please
有什么办法我可以做这样的事情(因为两个异常的结果都是say please):
try: # do something that may fail except IDontLikeYouException, YouAreBeingMeanException: # say please
实际上这不起作用,因为python把它当做以下语法:
try: # do something that may fail except Exception, e: # say please
因此,在一行中捕获多个异常并没有实现。
有没有办法做到这一点?
通过阅读官方文档,我找到了答案:
except (IDontLikeYouException, YouAreBeingMeanException) as e: pass
或者(仅适用于Python 2):
except (IDontLikeYouException, YouAreBeingMeanException), e: pass
使用逗号将变量与变量分开仍然可以在Python 2.6和2.7中使用,但在Python 3中不起作用; 现在你应该使用as。