[已解决]用字符串变量，和不用的区别在哪？

小章郎

为什么输入账号密码要用字符串变量，和不用的区别在哪？
下面是视频里使用字符串变量的代码

1. from tkinter import *
   
2. 
   
3. root = Tk()
   
4. 
   
5. label1 = Label(root, text = '账号').grid(row = 0,column = 0)
   
6. label2 = Label(root, text = '密码').grid(row = 1,column = 0)
   
7. 
   
8. v1 = StringVar()
   
9. v2 = StringVar()
   
10. 
    
11. e1 = Entry(root, textvariable = v1)
    
12. e2 = Entry(root, textvariable = v2,show = '*')
    
13. 
    
14. e1.grid(row = 0, column = 1,padx = 10,pady = 5)
    
15. e2.grid(row = 1, column = 1,padx = 10,pady = 5)
    
16. 
    
17. 
    
18. def show():
    
19.     print('账户：%s'%e1.get())
    
20.     print('密码：%s'%e2.get())
    
21.     e1.delete(0,END)
    
22.     e2.delete(0,END)
    
23.    
    
24. Button(root, text = '芝麻开门', width = 10, command = show)\
    
25.              .grid(row = 3, column = 0, sticky = W, padx = 10, pady = 5)
    
26. Button(root, text = '退出', width = 10, command = root.quit)\
    
27.              .grid(row = 3, column = 1, sticky = E, padx = 10, pady = 5)
    
28. 
    
29. mainloop()
    
30. 
    

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这段是不使用字符串变量的代码

1. from tkinter import *
   
2. 
   
3. root = Tk()
   
4. 
   
5. label1 = Label(root, text = '账号').grid(row = 0,column = 0)
   
6. label2 = Label(root, text = '密码').grid(row = 1,column = 0)
   
7. 
   
8. e1 = Entry(root)
   
9. e2 = Entry(root,show = '*')
   
10. e1.grid(row = 0, column = 1,padx = 10,pady = 5)
    
11. e2.grid(row = 1, column = 1,padx = 10,pady = 5)
    
12. 
    
13. 
    
14. def show():
    
15.     print('账户：%s'%e1.get())
    
16.     print('密码：%s'%e2.get())
    
17.     e1.delete(0,END)
    
18.     e2.delete(0,END)
    
19.    
    
20. Button(root, text = '芝麻开门', width = 10, command = show)\
    
21.              .grid(row = 3, column = 0, sticky = W, padx = 10, pady = 5)
    
22. Button(root, text = '退出', width = 10, command = root.quit)\
    
23.              .grid(row = 3, column = 1, sticky = E, padx = 10, pady = 5)
    
24. 
    
25. mainloop()
    
26. 
    

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最佳答案

月排行榜 / 总排行榜

塔利班

2018-12-4 21:44:57

还是有点，你硬说毫无差别，新定义了2个类是咧，另一个是利用内置

跳转到最佳答案楼层

塔利班

看你喜欢哪个，用get也行

小章郎

塔利班 发表于 2018-12-4 21:31
看你喜欢哪个，用get也行

就是毫无差别啦？

塔利班

还是有点，你硬说毫无差别，新定义了2个类是咧，另一个是利用内置