如何从python tkinter中的for循环中的列表创建多个复选框 [英] How do I create multiple checkboxes from a list in a for loop in python tkinter

问题描述

我有一个可变长度的列表，并希望为列表中的每个条目创建一个复选框（使用python TKinter）（每个条目对应一个机器，应该打开或关闭与复选框 - >更改值词典）。

I have a list of variable length and want to create a checkbox (with python TKinter) for each entry in the list (each entry corresponds to a machine which should be turned on or off with the checkbox -> change the value in the dictionary).

print enable
{'ID1050': 0, 'ID1106': 0, 'ID1104': 0, 'ID1102': 0}

（例如，可以是任意长度）

(example, can be any length)

现在相关代码：

for machine in enable:
    l = Checkbutton(self.root, text=machine, variable=enable[machine])
    l.pack()
self.root.mainloop()

此代码生成4个复选框，但它们都在一起打开或关闭，值不更改。如何解决？ （我认为l不工作，但如何使这个变量？）

This code produces 4 checkboxes but they are all either on or off together and the values don't change. How to solve? (I thought the l doesn't work but how to make this one variable?)

推荐答案

checkbutton必须是Tkinter变量的实例 - 因为它只是传递的值0，这导致了错误行为。

The "variable" passed to each checkbutton must be an instance of Tkinter Variable - as it is, it is just the value "0" that is passed, and this causes the missbehavior.

您可以创建Tkinter.Variable实例在同一for循环中创建checkbuttons - 只需将代码更改为：

You can create the Tkinter.Variable instances on he same for loop you create the checkbuttons - just change your code to:

for machine in enable:
    enable[machine] = Variable()
    l = Checkbutton(self.root, text=machine, variable=enable[machine])
    l.pack()

self.root.mainloop()

然后，您可以使用 get 方法，如
enable [ID1050]。get（）

You can then check the state of each checkbox using its get method as in enable["ID1050"].get()

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