如何在 python tkinter 中从 txt 文件创建多个复选框

Question

我想通过路径从我的 txt 文件中的行创建复选按钮，然后想要获取复选按钮的值。在2021-03-27.txt

1. Python
2. C++

然后，如果选中 1.Python，我需要在 2021-03-27.txt

中附加 1. Python complete

但我不知道如何匹配复选按钮的行和变量。我该如何解决？

path = "/Study/2021-03-27.txt"
f_open = open(path, "r")
lines = f_open.readlines()
hw_lists = []
chkvar = []

for line in lines:
    hw_lists.append(line) 
f_open.close()

chkvar_count = 0

for hw_list in hw_lists:
    Checkbutton(root, text=hw_list, variable=chkvar[chkvar_count]).pack()
    chkvar_count += 1

def resut_output():
    for i in range(len(hw_lists)-1):
        if chkvar == 1:
            f_open = open(path, "a")
            f_open.write(hw_lists[i]+"complete")
            f_open.close()

Button(root, text="OK", command=resut_output).pack()

root.mainloop()

Answer 1

这是您的解决方案

import tkinter as tk
from tkinter import *


path = "2021-03-27.txt"
f_open = open(path, "r")
lines = f_open.readlines()
hw_lists = []
chkvar = []

root = tk.Tk()

for line in lines:
    hw_lists.append(line)
    chkvar.append(tk.IntVar())
f_open.close()


chkvar_count = 0



for hw_list in hw_lists:
    print(chkvar_count)
    Checkbutton(root, text=hw_list, variable=chkvar[chkvar_count]).pack()
    chkvar_count += 1

def resut_output():
    for i in range(len(hw_lists)):
        if chkvar[i].get() == 1:
            f_open = open(path, "a")
            f_open.write('\n' + hw_lists[i].strip('\n') + " complete")
            f_open.close()

Button(root, text="OK", command=resut_output).pack()

root.mainloop()

您需要在 chkvar 中声明 tk.IntVar() 而不是简单变量，因为 tkinter 在复选框选择时更新 IntVar。然后阅读 chkvar 并进行比较，并根据需要继续在文本中写入信息。有问题随时问我

如何在 python tkinter 中从 txt 文件创建多个复选框

How do I create multiple checkboxes from txt file in python tkinter

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tkinter

tkinter.checkbutton