Question

tkinter python3中，为什么grid不能用？

代码：————————————————————————————————————————from password import *from tkinter import *def login(): logwin=Tk() logwin.title("登录_宠物世界") username=Label(logwin,text='用户名:') username.grid(row=1,column=1) username.pack() password=Label(logwin,text='密码:') password.grid(row=1,column=2) password.pack() userent=Entry(logwin) userent.grid(row=2,column=1) userent.pack() passent=Entry(logwin) passent.grid(row=2,column=2) passent.pack()login()————————————————————————————————————————输出(报错)：————————————————————————————————————————Traceback (most recent call last): File "/Volumes/我才不是硬盘（D） /Python/login.py", line 18, in <module> login() File "/Volumes/我才不是硬盘（D） /Python/login.py", line 10, in login password.grid(row=1,column=2) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/tkinter/__init__.py", line 2226, in grid_configure + self._options(cnf, kw))_tkinter.TclError: cannot use geometry manager grid inside . which already has slaves managed by pack

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Answer 1

用了grid方法已经指定了控件的位置，不需要也不能再用pack方法了
删除所有pack语句，保留grid语句即可

Answer 2

grid方法和pack方法只能选一种，用了grid方法就不用pack了