[已解决]python tkinter模块

1062195630

from tkinter import *
def sumfun():
    aa=int(v1.get())+int(v2.get())
    v3.set(aa)
def isd(content):
    if content.isdigit():
        return 1
    else:
        return 0
root=Tk()
frame=Frame(root)
frame.pack(padx=10,pady=5)
isdcmd=root.register(isd)
v1=StringVar()
v2=StringVar()
v3=StringVar()
e1=Entry(frame,textvariable=v1,validate='key',validatecommand=(isdcmd,'P'))
e1.grid(row=0,column=0)
e2=Entry(frame,textvariable=v2,validate='key',validatecommand=(isdcmd,'P'))
e2.grid(row=0,column=2)
e3=Entry(frame,textvariable=v3)
e3.grid(row=0,column=4)
Label(frame,text="+").grid(row=0,column=1)
Label(frame,text="=").grid(row=0,column=3)
Button(frame,text='计算结果',command=sumfun).grid(row=1,column=2)
mainloop()



我的为什么输入不进去数字啊

最佳答案

月排行榜 / 总排行榜

Twilight6

2021-6-11 15:57:43

[b]
验证字符串你忘记加 % 号了

validatecommand=(isdcmd,'%P')

参考代码：

1. from tkinter import *
   
2. 
   
3. 
   
4. def sumfun():
   
5.     aa = int(v1.get()) + int(v2.get())
   
6.     v3.set(aa)
   
7. 
   
8. 
   
9. def isd(content):
   
10.     if content.isdigit():
    
11.         return 1
    
12.     else:
    
13.         return 0
    
14. 
    
15. 
    
16. root = Tk()
    
17. frame = Frame(root)
    
18. frame.pack(padx=10, pady=5)
    
19. isdcmd = root.register(isd)
    
20. v1 = StringVar()
    
21. v2 = StringVar()
    
22. v3 = StringVar()
    
23. e1 = Entry(frame, textvariable=v1, validate='key', validatecommand=(isdcmd, '%P'))
    
24. e1.grid(row=0, column=0)
    
25. e2 = Entry(frame, textvariable=v2, validate='key', validatecommand=(isdcmd, '%P'))
    
26. e2.grid(row=0, column=2)
    
27. e3 = Entry(frame, textvariable=v3)
    
28. e3.grid(row=0, column=4)
    
29. Label(frame, text="+").grid(row=0, column=1)
    
30. Label(frame, text="=").grid(row=0, column=3)
    
31. Button(frame, text='计算结果', command=sumfun).grid(row=1, column=2)
    
32. mainloop()

复制代码

[/b]

跳转到最佳答案楼层

Twilight6

[b]
验证字符串你忘记加 % 号了

validatecommand=(isdcmd,'%P')

参考代码：

1. from tkinter import *
   
2. 
   
3. 
   
4. def sumfun():
   
5.     aa = int(v1.get()) + int(v2.get())
   
6.     v3.set(aa)
   
7. 
   
8. 
   
9. def isd(content):
   
10.     if content.isdigit():
    
11.         return 1
    
12.     else:
    
13.         return 0
    
14. 
    
15. 
    
16. root = Tk()
    
17. frame = Frame(root)
    
18. frame.pack(padx=10, pady=5)
    
19. isdcmd = root.register(isd)
    
20. v1 = StringVar()
    
21. v2 = StringVar()
    
22. v3 = StringVar()
    
23. e1 = Entry(frame, textvariable=v1, validate='key', validatecommand=(isdcmd, '%P'))
    
24. e1.grid(row=0, column=0)
    
25. e2 = Entry(frame, textvariable=v2, validate='key', validatecommand=(isdcmd, '%P'))
    
26. e2.grid(row=0, column=2)
    
27. e3 = Entry(frame, textvariable=v3)
    
28. e3.grid(row=0, column=4)
    
29. Label(frame, text="+").grid(row=0, column=1)
    
30. Label(frame, text="=").grid(row=0, column=3)
    
31. Button(frame, text='计算结果', command=sumfun).grid(row=1, column=2)
    
32. mainloop()

复制代码

[/b]

叼辣条闯世界

1. from tkinter import *
   
2. 
   
3. 
   
4. def sumfun():
   
5.     aa = int(v1.get()) + int(v2.get())
   
6.     v3.set(aa)
   
7. 
   
8. 
   
9. def isd(content):
   
10.     if content.isdigit():
    
11.         return 1
    
12.     else:
    
13.         return 0
    
14. 
    
15. 
    
16. root = Tk()
    
17. frame = Frame(root)
    
18. frame.pack(padx=10, pady=5)
    
19. isdcmd = root.register(isd)
    
20. v1 = StringVar()
    
21. v2 = StringVar()
    
22. v3 = StringVar()
    
23. e1 = Entry(frame, textvariable=v1, validate='key', validatecommand=(isdcmd, '%P'))
    
24. e1.grid(row=0, column=0)
    
25. e2 = Entry(frame, textvariable=v2, validate='key', validatecommand=(isdcmd, '%P'))
    
26. e2.grid(row=0, column=2)
    
27. e3 = Entry(frame, textvariable=v3)
    
28. e3.grid(row=0, column=4)
    
29. Label(frame, text="+").grid(row=0, column=1)
    
30. Label(frame, text="=").grid(row=0, column=3)
    
31. Button(frame, text='计算结果', command=sumfun).grid(row=1, column=2)
    
32. mainloop()

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