传递一个列表作为参数的元素在Python函数 [英] Pass elements of a list as arguments to a function in python

问题描述

我要建在python简单的跨preTER和我有麻烦处理的参数不同的数字来我的功能。我目前的方法是得到命令/参数列表如下：

I'm building a simple interpreter in python and I'm having trouble handling differing numbers of arguments to my functions. My current method is to get a list of the commands/arguments as follows.

args = str(raw_input('>> ')).split()
com = args.pop(0)

然后执行COM，我检查，看它是否是我的命令 - > code映射的字典，如果是我叫我已经存储在那里的​​功能。对于没有参数的命令，这将是这样的：

Then to execute com, I check to see if it is in my dictionary of command-> code mappings and if it is I call the function I have stored there. For a command with no arguments, this would look like:

commands[com]()

但是，如果一个命令有多个参数，我想这样的：

However, if a command had multiple arguments, I would want this:

commands[com](args[0],args[1])

有一些诀窍，我可以通过我的ARG名单给函数的元素，我试图调用部分（或全部）？还是有实施这种无需使用Python的CMD类的更好的办法？

Is there some trick where I could pass some (or all) of the elements of my arg list to the function that I'm trying to call? Or is there a better way of implementing this without having to use python's cmd class?

推荐答案

尝试

commands[com](*args)

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