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- from tkinter import *
- def check(num):
- return num.isdigit()
- root = Tk()
- frame1 = Frame(root)
- frame1.pack(padx = 10, pady = 10)
- frame2 = Frame(root)
- frame2.pack(padx = 10, pady = 10)
- v1 = StringVar()
- v2 = StringVar()
- check_num = root.register(check)
- e1 = Entry(frame1, textvariable = v1, validate = 'key', validatecommand = (check_num, '%P'))
- e1.grid(row = 0, column = 0)
- e2 = Entry(frame1, textvariable = v2)
- e2.grid(row = 0, column = 2)
- e3 = Entry(frame1, state = "readonly")
- e3.grid(row = 0, column = 4)
- Label(root, text = '+').grid(row = 0, column = 1)
- Label(root, text = '=').grid(row = 0, column = 3)
- # label1 = Label(root, text = '+')
- # label1.grid(row = 0, column = 1)
- # label2 = Label(root, text = '=')
- # label2.grid(row = 0, column = 3)
- mainloop()
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这段代码运行后,出了一个异常,内容如下
- Traceback (most recent call last):
- File "F:/Python source file/gui_in_tkinter/calculator/calculator.py", line 28, in <module>
- Label(root, text = '+').grid(row = 0, column = 1)
- File "E:\Python\lib\tkinter\__init__.py", line 2220, in grid_configure
- + self._options(cnf, kw))
- _tkinter.TclError: cannot use geometry manager grid inside . which already has slaves managed by pack
复制代码
我明明用的是grid方法啊,为什么它会说被pack管理了啊 |
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