python - 使用* args和** kwargs [重复](Use of *args and **kwargs [duplicate])

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This question already has answers here) : 这个问题已经在这里有了答案) ：)

What does ** (double star/asterisk) and * (star/asterisk) do for parameters? **（双星号/星号）和*（星号/星号）对参数有什么作用？) (19 answers) （19个回答）)

Closed 6 years ago . 6年前关闭。)

So I have difficulty with the concept of *args and **kwargs . (所以我很难理解*args和**kwargs的概念。)

So far I have learned that: (到目前为止，我已经了解到：)

• *args = list of arguments - as positional arguments (*args =参数列表-作为位置参数)
• **kwargs = dictionary - whose keys become separate keyword arguments and the values become values of these arguments. (**kwargs =字典-其键成为单独的关键字参数，而值则成为这些参数的值。)

I don't understand what programming task this would be helpful for. (我不知道这对您有什么帮助。)

Maybe: (也许：)

I think to enter lists and dictionaries as arguments of a function AND at the same time as a wildcard, so I can pass ANY argument? (我认为要输入列表和字典作为函数的参数，并与通配符同时输入，因此我可以传递ANY参数吗？)

Is there a simple example to explain how *args and **kwargs are used? (有一个简单的示例来说明如何使用*args和**kwargs吗？)

Also the tutorial I found used just the "*" and a variable name. (我发现的教程也只使用了“ *”和一个变量名。)

Are *args and **kwargs just placeholders or do you use exactly *args and **kwargs in the code? (*args和**kwargs只是占位符还是在代码中使用了*args和**kwargs ？)

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