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为什么ys(0)本身?
原标题:why sys.argv[0] is itself?
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我正在使用<条码>sys.argv[1:],以提出惯常意见。 但突然提出了一个问题。

<代码>sys.argv[0]始终如一。 如果我的档案名称为aa.py,则argv[0]aaa.py

通常不使用自己的名字。 因此,argv[0]被搁置,即使这是最宝贵的立场。

为什么sys.argv[0]? 什么?

我不想说一句话。 我只想知道为什么。

最佳回答

为什么ys夫是自己的名字? 什么?

至少在某些操作系统中,它只是吨数。 关于班轮,如果你打电话给你与<编码>的指挥线上的假程节目,请上<代码>。 如果你通过给出全程路标(/home/user/aaa.py,请上/home/user/aaa.py。 如果你用<代码>python-m aa称呼,那是通往aa.py的完全途径。

See the official documentation:

sys.argv

指挥线论点清单已传到Av script. argv [0] 是文字名称(它正在运行,取决于这是否全称)。 如果指挥官使用口译的“指挥线”办法执行指挥,则“指挥”是指“护卫”。 如果不将文字名称传给Saldello,那么空洞就是一个rg。

举例来说,在印刷使用时提供实际文字名称是有用的()。

问题回答

我认为,这或许源于<条码>C。 即使在<代码>C上,main第2条论点argv第1条价值是方案本身的名称。





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