python 中异常处理
Python中的异常由 try-except 块处理，例如：def some_function(): try: # Division by zero raises an exception 10 / 0 except ZeroDivisionError: print "Oops, invalid." else: # Exception didn't occur, we're good. pass finally: # This is executed after the code block is run # and all exceptions have been handled, even # if a new exception is raised while handling. print "We're done with that.">>> some_function()Oops, invalid.We're done with that.
try:except:else:finally: 不管触不触发except都要执行的这一步
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