python 中tkinter pack的问题

1404461012

这是一个页面，但f3_3的框架无法显示（我指定他的颜色为黑，来查看他是否显示了），f3_3框架本应显示在左边的空白区域，应该如何做？

1. from tkinter import *
   
2. 
   
3. root = Tk()
   
4. f3_str = StringVar()
   
5. f3_str.set('sdafd')
   
6. frame3 = Frame(root,height = 400, width = 600)
   
7. frame3.propagate(0)
   
8. frame3.pack()
   
9. f3_1 = Frame(frame3,height = 280, width = 70,bg = 'black')
   
10. f3_1.propagate(0)
    
11. f3_1.pack(padx = 0, pady = 20, anchor = 'ne')
    
12. f3_2 = Frame(frame3, height = 100, width = 70)
    
13. f3_2.pack(padx = 0, pady = 10, anchor = 'se')
    
14. f3_2.propagate(0)
    
15. pre = Button(f3_1, text = '上一页')
    
16. pre.pack(padx = 10, pady = 10, anchor = 'nw')
    
17. nt = Button(f3_1, text = '下一页', anchor = 'nw')
    
18. nt.pack(padx = 10, pady = 10, anchor = 'nw')
    
19. download_ok = Button(f3_2, text = '下载')
    
20. download_ok.pack(padx = 10, pady = 10, anchor = 'sw')
    
21. f3_3 = Frame(frame3, height = 400, width = 500,bg = 'black')
    
22. f3_3.propagate(0)
    
23. f3_3.pack(padx = 10, pady = 10, anchor = 'nw')
    
24. textlabel = Label(f3_3, textvariable = f3_str, fg = 'green')
    
25. textlabel.pack(anchor = 'n',pady = 5)
    
26. mainloop()
    

复制代码

1404461012

我会了，设置side就可以了