python中“except Exception as e”是什么意思？
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What does ''except Exception as e'' mean in python?
提问by lxjhk
The typical structure for exception handling is below:
异常处理的典型结构如下：
try:
pass
except Exception, e:
raise
else:
pass
finally:
pass
May I know what does except Exception, e:orexcept Exception as e:mean?
Typically I will use print (e)to print the error message but I am wondering what the program has done to generate the e.
我想知道是什么except Exception, e:或者except Exception as e:是什么意思？通常我会print (e)用来打印错误消息，但我想知道程序做了什么来生成 e.txt 文件。
If I were to construct it in another way (below), how would it be like?
如果我以另一种方式构建它（如下），它会是什么样子？
except Exception:
e = Exception.something
What should the method be to replace the something?
应该用什么方法来替换something？
When the body of code under trygives no exception, the program will execute the code under else. But, what does finallydo here?
当下面的代码体try没有异常时，程序将执行下面的代码else。但是，finally在这里做什么？
采纳答案by Max Noel
except Exception as e, or except Exception, e(Python 2.x only) means that it catches exceptions of type Exception, and in the except:block, the exception that was raised (the actual object, not the exception class) is bound to the variable e.
except Exception as e，或except Exception, e（仅限 Python 2.x）表示它捕获类型为 的异常Exception，并且在except:块中，引发的异常（实际对象，而不是异常类）绑定到变量e。
As for finally, it's a block that alwaysgets executed, regardless of what happens, after the exceptblock (if an exception is raised) but always before anything else that would jump out of the scope is triggered (e.g. return, continueor raise).
至于finally，它是一个总是被执行的块，无论发生什么，在except块之后（如果引发异常）但总是在触发任何其他会跳出范围的东西之前（例如return，continue或raise）。
