如何使按钮列表中的 tkinter 按钮返回其索引？ [复制]

Question

我一般是编码新手（Python 是我的第一语言），我在学习 tkinter 时遇到了这个问题。我的代码如下：

from tkinter import *
window = Tk()

buttons = []

def position(pos):
    print(pos)

for i in range(7):
    buttons.append(Button(window, width = 10, height = 5, bg = "red", command = position(i)).grid(row = 0, column = i))

window.mainloop()

这不起作用。单击该按钮时，我想打印该按钮的索引。我尝试了几种方法来实现这一点，但没有成功。按钮不一定要在列表中，但是第一个按钮必须返回 0，第二个返回 1，第三个返回 2 等等。最简单的方法是什么？

Answer 1

看这个：

from tkinter import *

root = Tk()

files = [] #creates list to replace your actual inputs for troubleshooting purposes
btn = [] #creates list to store the buttons ins

for i in range(50): #this just popultes a list as a replacement for your actual inputs for troubleshooting purposes
    files.append("Button"+str(i))

for i in range(len(files)): #this says for *counter* in *however many elements there are in the list files*
    #the below line creates a button and stores it in an array we can call later, it will print the value of it's own text by referencing itself from the list that the buttons are stored in
    btn.append(Button(root, text=files[i], command=lambda c=i: print(btn[c].cget("text"))))
    btn[i].pack() #this packs the buttons

root.mainloop()

取自：How can I get the button id when it is clicked?