Re: Antwort: global keyword instead of local
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- Subject: Re: Antwort: global keyword instead of local
- From: "Magnus Lie Hetland" <mlh@...>
- Date: 2000年8月28日 15:52:28 +0200
> I don't know the languages you know, but the languages I know don't behave
> like that. In C, for instance, if you write
>
> void f (void) {
> i = i+1;
> }
>
> this `i' is not "automatically local". If you want a local `i', you must
> say so. The same is true in C++, Pascal, Java, Perl, Ada, FORTRAN, Scheme,
> Simula, Smalltalk, SNOBOL, ML, Haskell, etc. etc. (Tcl is one of the few
> exceptions.)
>
Python example:
>>> def f():
... i = i+1
...
>>> i = 1
>>> f()
Traceback (innermost last):
File "<stdin>", line 1, in ?
File "<stdin>", line 2, in f
NameError: i
>>>
--
Magnus Lie Hetland (magnus at hetland dot org)
"Reality is what refuses to disappear when you stop
believing in it" -- Philip K. Dick