使用作为 tkinter 按钮中的命令的函数的输出

Question

我正在尝试为我的项目创建一个 GUI。 我想将在我的 tkinter 按钮中作为命令调用的函数的输出列表用于其他函数。 我已经看到了关于这个问题的相同问题，但我还没有遇到返回 List 的情况。 我感谢您与我分享的所有见解。 这是我的代码示例

*imports and window root here

coordList = []
coordList1 = []

def match(s):
    for i in range(s):
        coor_label = Label(root, text=f"Coordinate {i + 1}: ").grid(column=0, row=i, sticky="w")
        coor_entry = Entry(root, bd=2)
        coor_entry.grid(column=1, row=i, sticky="w")
        coordList.append(coor_entry)

def wer():
    for i in coordList:
        j = i.get()
        coordList1.append(j)
    return coordList1

click = Button(root, text="Click", command=lambda: match(3))
click.grid(row=0, column=2)  #code is working fine up to this line

run = Button(root, text="Run", command=lambda: wer())
run.grid(row=1, column=2) #even if I do print(coordList1) in wer(), it's not working

**Upon clicking 'run' button, I want to use the coordList1 for another functions**

*root.mainloop()

我是编程新手，所以如果解决方案不包括面向对象的东西，我会很感激。 另外，我可以在匹配中自动输入数字“s”吗？

编辑：假设我想添加一个函数来计算坐标差并将存储在 coordList2 中，即坐标 2 - 坐标 1、坐标 3 - 坐标 2 等。我引入了新函数 asd()。 请参阅下面的示例代码

*imports and window root here

coordList = []
coordList1 = []

def match(s):
    for i in range(s):
        coor_label = Label(root, text=f"Coordinate {i + 1}: ").grid(column=0, row=i, sticky="w")
        coor_entry = Entry(root, bd=2)
        coor_entry.grid(column=1, row=i, sticky="w")
        coordList.append(coor_entry)

def wer():
    for i in coordList:
        j = i.get()
        coordList1.append(j)
    return coordList1

def asd():
    for i in coordList1:
        h = i - 1
        if h >= 0:
             j = i.get() - h.get()
             coordList2.append(j)
        else:
             pass

click = Button(root, text="Click", command=lambda: match(3))
click.grid(row=0, column=2)  #code is working fine up to this line

run = Button(root, text="Run", command=lambda: asd())
run.grid(row=1, column=2)

root.mainloop()

如果我打印 coordList2 控制台只显示 []。 我应该在代码中修改什么才能按我的意图工作..

Answer 1

我认为它很好用

import tkinter
from tkinter import *
root = Tk()

coordList = []
coordList1 = []

def match(s):
    
    def wer():
        for i in coordList:
            j = i.get()
            coordList1.append(j)
        print(coordList1)
    for i in range(s):
        coor_label = Label(root, text=f"Coordinate {i + 1}: ").grid(column=0, row=i, sticky="w")
        coor_entry = Entry(root, bd=2)
        coor_entry.grid(column=1, row=i, sticky="w")
        coordList.append(coor_entry)
        
    run = Button(root, text="Run", command=lambda: wer())
    run.grid(row=1, column=2)

    def wer():
        for i in coordList:
            j = i.get()
            coordList1.append(j)
        print(coordList1)

click = Button(root, text="Click", command=lambda: match(8))
click.grid(row=0, column=2)  #code is working fine up to this line
 #even if I do print(coordList1) in wer(), it's not working

# Upon clicking 'run' button, I want to use the coordList1 for another functions**

root.mainloop()