GUI程序內部if-else條件查詢

Question

我目前正在學習python編程語言。我想知道如何調用GUI，例如Button或Radiobutton，如果條件。請幫我

Answer 1

這個樣本可能會給你一些想法。嘗試將變量'need_btn'設置爲True並且假設

import tkinter as tk             

class App(tk.Frame):             
    def __init__(self, master=None, hibtn=True):      
     tk.Frame.__init__(self, master)        
     self.pack()             
     self.createWidgets(hibtn=hibtn)        

    def createWidgets(self, hibtn=True):        
     if hibtn:              
      self.btn = tk.Button(self)        
      self.btn["text"] = "Hello\n(click me)"     
      self.btn["command"] = self.say_hi       
      self.btn.pack()           

     self.ext = tk.Button(self, text="Exit", command=root.destroy) 
     self.ext.pack()            

    def say_hi(self):             
     print("hi from Tkinter!")          

root = tk.Tk()              

need_btn = False              
# need_btn = True              

if need_btn:               
    app = App(master=root)           
else:                 
    app = App(master=root, hibtn=False)        

app.mainloop()