Python：tkinter：创建自定义窗口提示

Question

我一直在努力尝试解决这个问题。当使用tkinter和python时，我可以使用什么方法来使用按钮返回函数的值？这里是我现在的代码

def choice_message (message_title, message, choice_1, choice_2): 
    new_window = Tk() 
    new_window.minsize (400, 150) 
    new_window.maxsize (400, 150) 
    new_window.title (str (message_title)) 
    Label (new_window, text = message, font = "Arial", wrap = 380, anchor = NW).place (x = 10, y = 0, width = 400, height = 100) 

    def yes(): 
     new_window.destroy() 
     # Added code 

    def no(): 
     new_window.destroy() 
     # Added code (same as yes but returns false (??)) 

    Button (new_window, text = str (choice_1), font = "Arial", anchor = CENTER, command = yes).place (x = 90, y = 110, width = 100, height = 30) 
    Button (new_window, text = str (choice_2), font = "Arial", anchor = CENTER, command = no).place (x = 210, y = 110, width = 100, height = 30) 

# .... 

if (choice_message ("Hello", "This is a message text", "True", "False") == True): 
    print ("The Window Works...") 

Answer 1

您将不得不以不同的方式构建它。

您可以创建一个具有self.result的类，它必须使用wait_window()，因此它将等到您关闭窗口。然后你可以从价值self.result

你可以使用这个类在choice_message：

import tkinter as tk 

# --- classes --- 
# you can put this class in separated file 
# (it will need `import tkinter`) 

import tkinter 

class MsgBox(tkinter.Toplevel): 

    def __init__(self, title="MsgBox", message="Hello World", choice1="OK", choice2="Cancel"): 
     tkinter.Toplevel.__init__(self) 

     self.result = None 

     self.choice1 = choice1 
     self.choice2 = choice2 

     self.title(title) 

     self.label = tkinter.Label(self, text=message, bg='white') 
     self.label.pack(ipadx=50, ipady=20) 

     self.button = tkinter.Button(self, text=str(self.choice1), command=self.on_press_choice1) 
     self.button.pack(side='left', ipadx=5, padx=10, pady=10) 

     self.button = tkinter.Button(self, text=str(self.choice2), command=self.on_press_choice2) 
     self.button.pack(side='right', ipadx=5, padx=10, pady=10) 

     # don't return to main part till you close this MsgBox 
     self.wait_window() 

    def on_press_choice1(self): 
     self.result = self.choice1 
     self.destroy() 

    def on_press_choice2(self): 
     self.result = self.choice2 
     self.destroy() 

# --- functions --- 

def choice_message(title, message, choice1, choice2): 

    msg = MsgBox(title, message, choice1, choice2) 
    # MsgBox is waiting till you close it 
    return msg.result 

def choose(): 
    if choice_message("Hello", "This is a message text", True, False) == True: 
     print("You choose: True") 
    else: 
     print("You choose: False") 

def about(): 
    msg = MsgBox() 
    # MsgBox is waiting till you close window 
    print("You choose:", msg.result) 

def close(): 
    msg = MsgBox('Closing', 'Are you sure?', 'Yes', 'No') 
    # MsgBox is waiting till you close window 
    if msg.result == 'Yes': 
     root.destroy() 

# --- main --- 

root = tk.Tk() 

b = tk.Button(root, text="Choose", command=choose) 
b.pack(fill='x', expand=True) 

b = tk.Button(root, text="About", command=about) 
b.pack(fill='x', expand=True) 

b = tk.Button(root, text="Close", command=close) 
b.pack(fill='x', expand=True) 

root.mainloop() 

主要MSGBOX：

选择：

关于：

关闭：