将多个参数传递给python中的函数的方法 [英] Way to pass multiple parameters to a function in python

问题描述

我已经编写了一个调用函数的python脚本.此函数将7个列表作为函数内的参数，如下所示:

I have written a python script which calls a function. This function takes 7 list as parameters inside the function, something like this:

def WorkDetails(link, AllcurrValFound_bse, AllyearlyHLFound_bse, 
                AlldaysHLFound_bse, AllvolumeFound_bse, 
                AllprevCloseFound_bse, AllchangePercentFound_bse, 
                AllmarketCapFound_bse):

，其中除link以外的所有参数均为列表.但这使我的代码看起来很难看.我将这些列表传递给此函数，因为该函数在所有这些列表中附加了几个值.我该如何以更具可读性的方式为其他用户使用?

where all the arguments except link are lists. But this makes my code looks pretty ugly. I pass these lists to this function because the function appends few values in all of these lists. How can I do it in more readable way for other users?

推荐答案

测试功能:

您可以使用由*args表示的多个参数和由**kwargs表示的多个关键字，并传递给函数:

You can use multiple arguments representing by *args and multiple keywords representing by **kwargs and passing to a function:

def test(*args, **kwargs):
    print('arguments are:')
    for i in args:
        print(i)

    print('\nkeywords are:')
    for j in kwargs:
        print(j)

示例:

然后使用任何类型的数据作为参数，并使用与函数关键字一样多的参数.该函数将自动检测它们并将它们分隔为参数和关键字:

Then use any type of data as arguments and as many parameters as keywords for the function. The function will automatically detect them and separate them to arguments and keywords:

a1 = "Bob"      #string
a2 = [1,2,3]    #list
a3 = {'a': 222, #dictionary
      'b': 333,
      'c': 444}

test(a1, a2, a3, param1=True, param2=12, param3=None)

输出:

arguments are:
Bob
[1, 2, 3]
{'a': 222, 'c': 444, 'b': 333}

keywords are:
param3
param2
param1

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