CTkinter Entry组件快捷键调用返回历史旧值问题求助

1. 重复绑定快捷键：每次点击Save按钮调用shut_number时，都会执行kb.add_hotkey("Shift+1", vstavit)，给同一个快捷键新增一个回调函数。多次点击后，Shift+1会绑定多个vstavit实例，按下快捷键时所有绑定的函数都会依次执行，因此会输出所有历史值。
2. 闭包捕获旧值：每个vstavit函数是在点击Save时创建的，它捕获了当时date2、time2、shut的旧值，所以旧的回调函数只会输出创建时的Entry内容。

方案1：先移除旧绑定再添加新绑定 #

每次点击Save时，先检查并移除之前的Shift+1快捷键绑定，再添加新的回调。这样快捷键始终只绑定最新的回调函数，适合需要固定保存点击Save时内容的场景。

修改后的代码：

import customtkinter
import keyboard as kb
import time

# 保存快捷键的回调引用，方便后续移除
hotkey_callback = None

def shut_number():
    global hotkey_callback
    # 先移除之前的快捷键绑定
    if hotkey_callback is not None:
        kb.remove_hotkey(hotkey_callback)
    
    date2 = date1.get()
    time2 = time1.get()
    shut = shutnumber.get()
    
    print ("New Value")
    print (date2,time2,shut)
    
    def vstavit():
        print("Hotkey print")
        print(date2,time2,shut)
        time.sleep(.5)
        kb.send("Tab")
        kb.write(date2)
        time.sleep(.5)
        kb.send("Tab")
        kb.write(time2)
        time.sleep(.5)
        kb.send("Tab")
        kb.send("Tab")
        kb.write(shut)
    
    # 保存新的回调引用
    hotkey_callback = kb.add_hotkey("Shift+1", vstavit)

app = customtkinter.CTk()
app.title("my app")
app.geometry("800x150")
date1 = customtkinter.CTkEntry(app, placeholder_text="Date")
date1.grid(row=0, column=1, padx=20, pady=20)
time1 = customtkinter.CTkEntry(app, placeholder_text="Time")
time1.grid(row=0, column=2, padx=20, pady=20)
shutnumber = customtkinter.CTkEntry(app, placeholder_text="Shut")
shutnumber.grid(row=0, column=3, padx=20, pady=20)
button = customtkinter.CTkButton(app, text="Save", command=shut_number)
button.grid(row=1, column=0, padx=20, pady=20, sticky="ew", columnspan=4)
app.grid_columnconfigure(0, weight=1)

app.mainloop()

方案2：让回调实时获取Entry当前值 #

让vstavit在执行时直接调用date1.get()等方法获取最新值，同时配合移除旧绑定，确保快捷键始终输出Entry当前最新内容。

修改后的代码：

import customtkinter
import keyboard as kb
import time

hotkey_callback = None

def shut_number():
    global hotkey_callback
    if hotkey_callback is not None:
        kb.remove_hotkey(hotkey_callback)
    
    print ("New Value")
    print (date1.get(), time1.get(), shutnumber.get())
    
    def vstavit():
        # 实时获取Entry当前值
        current_date = date1.get()
        current_time = time1.get()
        current_shut = shutnumber.get()
        
        print("Hotkey print")
        print(current_date, current_time, current_shut)
        time.sleep(.5)
        kb.send("Tab")
        kb.write(current_date)
        time.sleep(.5)
        kb.send("Tab")
        kb.write(current_time)
        time.sleep(.5)
        kb.send("Tab")
        kb.send("Tab")
        kb.write(current_shut)
    
    hotkey_callback = kb.add_hotkey("Shift+1", vstavit)

app = customtkinter.CTk()
app.title("my app")
app.geometry("800x150")
date1 = customtkinter.CTkEntry(app, placeholder_text="Date")
date1.grid(row=0, column=1, padx=20, pady=20)
time1 = customtkinter.CTkEntry(app, placeholder_text="Time")
time1.grid(row=0, column=2, padx=20, pady=20)
shutnumber = customtkinter.CTkEntry(app, placeholder_text="Shut")
shutnumber.grid(row=0, column=3, padx=20, pady=20)
button = customtkinter.CTkButton(app, text="Save", command=shut_number)
button.grid(row=1, column=0, padx=20, pady=20, sticky="ew", columnspan=4)
app.grid_columnconfigure(0, weight=1)

app.mainloop()

内容的提问来源于stack exchange，提问作者Сергей Разумчиков