使用 Python for 循环更改变量名 [英] Changing variable names with Python for loops

问题描述

我只是想知道是否有人知道一种基于 for 循环更改变量名称的方法:

I was just wondering if anyone knew of a way to change variable names based off of a for loop for something like this:

for i in range(3)
     group+i=self.getGroup(selected, header+i)

以便更改变量的名称以适应数据.谢谢！

so that the names of the variables change to accomodate the data. Thanks!

~山姆

推荐答案

您可能需要一个 dict 而不是单独的变量.例如

You probably want a dict instead of separate variables. For example

d = {}
for i in range(3):
    d["group" + str(i)] = self.getGroup(selected, header+i)

如果你坚持实际修改局部变量，你可以使用locals函数:

If you insist on actually modifying local variables, you could use the locals function:

for i in range(3):
    locals()["group"+str(i)] = self.getGroup(selected, header+i)

另一方面，如果你真正想要的是修改你所在类的实例变量，那么你可以使用setattr函数

On the other hand, if what you actually want is to modify instance variables of the class you're in, then you can use the setattr function

for i in group(3):
    setattr(self, "group"+str(i), self.getGroup(selected, header+i)

当然，对于所有这些示例，我假设您不只是想要一个列表:

And of course, I'm assuming with all of these examples that you don't just want a list:

groups = [self.getGroup(i,header+i) for i in range(3)]

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