Python 如何在tkinter中比较按钮“文本”？

我一直在做tic tac toe项目，而在做这个项目的时候，我面临着一个问题，那就是如何通过循环获得tkinter按钮['text']文本值

如果不可能的话，还有其他方法吗

我试着比较一下，但不起作用，我也看了一些文档，但我得到了任何帮助

我会尝试：

返回：

---

如何更好地获取这些值？

要检查按钮，您不能使用字符串和打印-它们只能创建字符串并在屏幕上显示

您必须像这样使用for循环

result = False

for btn in all_buttons:
    if btn['text'] == ' ':
        result = True
        break # there is no need to check rest

print("There are empty buttons:", result)

或

有时，代替或可能需要-所有这些都取决于您尝试检查的内容-任何或全部

或者您可以使用任何或全部

您还可以将其与总和一起使用来计数

result = sum(btn['text'] == 'X' for btn in all_buttons)
print("Number of buttons with X:", result)

---

测试胜利-这更容易。对两者都进行测试。如果没有更多的字段可供选择，且双方均未获胜，则为平局。请将按钮保留在列表btn[0]，btn[1]上，然后您可以使用for循环将按钮与x进行比较，稍后再与oIt进行比较，不清楚您要检查什么。条件表达式不正确，很难理解您希望从中得到什么。您能详细说明一下您的代码是如何工作的吗？你在期待什么，到底发生了什么？如果您遇到异常/错误，请发布发生该异常/错误的行以及可以使用。请将您的问题添加到其中，否则我们可能无法提供帮助。如果您使用！=或==则不在中使用。如果self.btn1['text']==self.btn2['text']==x'：或如果self.btn1['text']！=self.btn2['text']！=…=：

result = False

for btn in all_buttons:
    if btn['text'] == ' ':
        result = True
        break # there is no need to check rest

print("There are empty buttons:", result)

result = False

for btn in all_buttons:
    result = result or (btn['text'] == ' '):

print("There are empty buttons:", result)

result = any(btn['text'] == ' ' for btn in all_buttons)
print("There are empty buttons:", result)

result = sum(btn['text'] == 'X' for btn in all_buttons)
print("Number of buttons with X:", result)

import tkinter as tk
import random
root = tk.Tk()

all_buttons = []

for row in range(3):
    for col in range(3):
         #btn = tk.Button(root, text=str(row*3+col))
         btn = tk.Button(root, text=random.choice(['X', 'O', ' ']))
         all_buttons.append(btn)
         btn.grid(row=row, column=col, sticky='news')

for btn in all_buttons:
    print('>', btn['text'], '<')

#---

result = sum(btn['text'] == 'X' for btn in all_buttons)
print("Number of buttons with X:", result)

result = sum(btn['text'] == 'O' for btn in all_buttons)
print("Number of buttons with O:", result)

result = sum(btn['text'] == ' ' for btn in all_buttons)
print("Number of empty buttons:", result)

print('---')

result = False
for btn in all_buttons:
    if btn['text'] == ' ':
        result = True
        break
print("There are empty buttons:", result)
print('---')

# the same using `any()` or `all()`    
result = any(btn['text'] == ' ' for btn in all_buttons)
print("Any button is empty:", result)
print("All buttons are used:", not result)
print('---')

result = all(btn['text'] != ' ' for btn in all_buttons)
print("Any button is empty:", not result)
print("All buttons are used:", result)
print('---')

result = all(btn['text'] == 'X' for btn in all_buttons)
print("Any button doesn't have X:", not result)
print("All buttons have X:", result)
print('---')

result = all(btn['text'] in ('O', 'X') for btn in all_buttons)
print("Any button doesn't have O or X:", not result)
print("All buttons have O or X:", result)
print('---')

rows = [
    all_buttons[0:3],
    all_buttons[3:6],
    all_buttons[6:9],
]    

for number, row in enumerate(rows, 1):
    result = all(btn['text'] == 'X' for btn in row)
    print("Row", number, "has three X (X wins):", result)
print('---')

columns = [
    [all_buttons[0], all_buttons[3], all_buttons[6]],
    [all_buttons[1], all_buttons[4], all_buttons[7]],
    [all_buttons[2], all_buttons[5], all_buttons[8]],    
]

for number, col in enumerate(columns, 1):
    result = all(btn['text'] == 'X' for btn in col)
    print("Column", number, "has three X (X wins):", result)

tk.mainloop()