顯示在Tkinter的標籤上相應的消息

Question

- 編輯：我目前的嘗試，很醜陋

import tkinter as tk 

class Example(tk.Frame): 
    def __init__(self, *args, **kwargs): 
     tk.Frame.__init__(self, *args, **kwargs) 


     self.labelLists = [] 
     self.labelBLists = [] 

     self.Label1 = tk.Label(self,text=str(1),bg="red") 
     self.Label1.pack() 
     self.Label1.bind("<Enter>", self.on_enter1) 
     self.Label1.bind("<Leave>", self.on_leave1) 
     self.Labela = tk.Label(self,text="",bg="blue") 
     self.Labela.pack() 

     self.Label2 = tk.Label(self,text=str(2),bg="red") 
     self.Label2.pack() 
     self.Label2.bind("<Enter>", self.on_enter2) 
     self.Label2.bind("<Leave>", self.on_leave2) 
     self.Labelb = tk.Label(self,text="",bg="blue") 
     self.Labelb.pack() 

     self.Label3 = tk.Label(self,text=str(3),bg="red") 
     self.Label3.pack() 
     self.Label3.bind("<Enter>", self.on_enter3) 
     self.Label3.bind("<Leave>", self.on_leave3) 
     self.Labelc = tk.Label(self,text="",bg="blue") 
     self.Labelc.pack() 


    def on_enter1(self, event): 
     self.Labela.config(text=self.Label1.cget("text")) 

    def on_leave1(self, enter): 
     self.Labela.config(text="") 

    def on_enter2(self, event): 
     self.Labelb.config(text=self.Label2.cget("text")) 
    def on_leave2(self, enter): 
     self.Labelb.config(text="") 
    def on_enter3(self, event): 
     self.Labelc.config(text=self.Label3.cget("text")) 
    def on_leave3(self, enter): 
     self.Labelc.config(text="") 

if __name__ == "__main__": 
    root = tk.Tk() 
    Example(root).pack(side="top", fill="both", expand="true") 
    root.mainloop() 

我要創建一組標籤，說L1，L2，L3，而且每一個都有一個對應的標籤La，Lb，Lc。我想要做的是當我將鼠標懸停在L1上時，La在L1上顯示單詞的翻譯。目前我在尋找Display message when going over something with mouse cursor in Python和Python Tkinter: addressing Label widget created by for loop，但他們都沒有地址綁定相應的方法。有沒有一種方法可以實現這一點，而無需創建三對不同的方法？

謝謝！

Answer 1

將每組標籤存儲在一個列表中。然後，您可以將它們與翻譯字典一起瀏覽，並將次要標籤（顯示翻譯）連接到主要標籤（響應用戶輸入）。這允許您創建一個單一的enter方法和一個單一的leave方法，使用event.widget訪問觸發事件的小部件。

import tkinter as tk 

class Example(tk.Frame): 
    def __init__(self, *args, **kwargs): 
     tk.Frame.__init__(self, *args, **kwargs) 
     self.translations = {'a':'A', 'b':'B', 'c':'C'} 

     self.labelLists = [tk.Label(self,text=str(x),bg="red") for x in range(1,4)] 
     self.labelBLists = [tk.Label(self,text="",bg="blue") for x in range(3)] 
     for x,y,tr in zip(self.labelLists, self.labelBLists, sorted(self.translations)): 
      x.bind('<Enter>', self.enter) 
      x.bind('<Leave>', self.leave) 
      x.connected = y 
      x.key = tr 
      x.pack() 
      y.pack() 

    def enter(self, event): 
     widget = event.widget 
     widget.connected.config(text=self.translations[widget.key]) 

    def leave(self, event): 
     widget = event.widget 
     widget.connected.config(text='') 

if __name__ == "__main__": 
    root = tk.Tk() 
    Example(root).pack(side="top", fill="both", expand="true") 
    root.mainloop()