访问动态创建的 tkinter 小部件 [英] Accessing dynamically created tkinter widgets

问题描述

我正在尝试制作一个 GUI，其中 tkinter 条目的数量由用户决定.

I am trying to make a GUI where the quantity of tkinter entries is decided by the user.

我的代码:

from tkinter import*

root = Tk()

def createEntries(quantity):
    for num in range(quantity):
        usrInput = Entry(root, text = num)
        usrInput.pack()

createEntries(10)

root.mainloop()

此代码基于 本教程我发现:

for num in range(10):
    btn = tkinter.button(window, text=num)
    btn.pack(side=tkinter.LEFT)

问题是我只能访问最新创建的小部件中的输入，因为它们都具有相同的名称.有没有办法动态创建具有唯一名称的小部件?

The problem is that I can only access the input in the latest created widget, because they all have the same name. Is there a way of dynamically creating widgets with unique names?

任何建议将不胜感激

推荐答案

解决方案是将小部件存储在列表或字典等数据结构中.例如:

The solution is to store the widgets in a data structure such as a list or dictionary. For example:

entries = []
for num in range(quantity):
    usrInput = Entry(root, text = num)
    usrInput.pack()
    entries.append(usrInput)

稍后，您可以遍历此列表以获取值:

Later, you can iterate over this list to get the values:

for entry in entries:
    value = entry.get()
    print("value: {}".format(value))

当然，您可以通过编号访问特定条目:

And, of course, you can access specific entries by number:

print("first item: {}".format(entries[0].get()))

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