[已解决]求解！ 为什么这段代码在我这一直报错啊？（新手）

李伦奥

import tkinter as tk
class App:
    def __init__(self,master):
        frame = tk.Frame(master)
        frame.pack()
        self.hi_there = tk.Button(frame,text="打招呼",bg='black',fg="blue",command=self.say_hi)
        self.hi_there.pack()

def say_hi(self):
    print("gcygucgcgw")





root = tk.Tk()
app = App(root)
root.mainloop()






报错信息：
Traceback (most recent call last):
  File "Desktop\tk2(报错).py", line 17, in <module>
    app = App(root)
  File "Desktop\tk2.py", line 6, in __init__
    self.hi_there = tk.Button(frame,text="打招呼",bg='black',fg="blue",command=self.say_hi)
AttributeError: 'App' object has no attribute 'say_hi'

最佳答案

月排行榜 / 总排行榜

isdkz

2022-2-15 22:29:08

1. 
   
2. import tkinter as tk
   
3. class App:
   
4.     def __init__(self,master):
   
5.         frame = tk.Frame(master)
   
6.         frame.pack()
   
7.         self.hi_there = tk.Button(frame,text="打招呼",bg='black',fg="blue",command=self.say_hi)
   
8.         self.hi_there.pack()
   
9. 
   
10.     def say_hi(self):                        # 这里要缩进，say_hi得在类里面
    
11.         print("gcygucgcgw")
    
12. 
    
13. 
    
14. 
    
15. 
    
16. 
    
17. root = tk.Tk()
    
18. app = App(root)
    
19. root.mainloop()

复制代码

跳转到最佳答案楼层

isdkz

1. 
   
2. import tkinter as tk
   
3. class App:
   
4.     def __init__(self,master):
   
5.         frame = tk.Frame(master)
   
6.         frame.pack()
   
7.         self.hi_there = tk.Button(frame,text="打招呼",bg='black',fg="blue",command=self.say_hi)
   
8.         self.hi_there.pack()
   
9. 
   
10.     def say_hi(self):                        # 这里要缩进，say_hi得在类里面
    
11.         print("gcygucgcgw")
    
12. 
    
13. 
    
14. 
    
15. 
    
16. 
    
17. root = tk.Tk()
    
18. app = App(root)
    
19. root.mainloop()

复制代码