Passing an Array/List into Python

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耶瑟儿~
耶瑟儿~ 2020-12-12 13:31

I\'ve been looking at passing arrays, or lists, as Python tends to call them, into a function.

I read something about using *args, such as:

def some         


        
5条回答
  •  借酒劲吻你
    2020-12-12 14:32

    When you define your function using this syntax:

    def someFunc(*args):
        for x in args
            print x
    

    You're telling it that you expect a variable number of arguments. If you want to pass in a List (Array from other languages) you'd do something like this:

    def someFunc(myList = [], *args):
        for x in myList:
            print x
    

    Then you can call it with this:

    items = [1,2,3,4,5]
    
    someFunc(items)
    

    You need to define named arguments before variable arguments, and variable arguments before keyword arguments. You can also have this:

    def someFunc(arg1, arg2, arg3, *args, **kwargs):
        for x in args
            print x
    

    Which requires at least three arguments, and supports variable numbers of other arguments and keyword arguments.

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