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python - 如果我添加滚动条，所有标签都会消失

问题描述

在我的程序中，我想添加很多标签，并且要查看它们需要滚动条。如果我在代码中添加滚动条，那么所有标签都会消失。我为长代码道歉，由于某种原因，如果没有所有额外的代码，我就无法让它工作。

没有滚动条的代码：

from tkinter import *
from functools import partial


words = ["test", "test", "test", "test", "test", "test", "test", "test", "test", "test", "test", "test", "test", "test"]
def validateLogin(password):
    print(password.get())
    if password.get() == "test":
        newWindow = Tk()
        newWindow.geometry('1800x800')
        newWindow.title("Passwords")
        tkWindow.destroy()
        for index, word in enumerate(words):
            Label(newWindow, text=word).grid(row=index, column=0)

    if password.get() != "test":
        Label(tkWindow, text="Wrong password!", fg='red').grid(row=5, column=2)

#window
tkWindow = Tk()
tkWindow.geometry('250x100')
tkWindow.title('Passwords')

#password label and password entry box
passwordLabel = Label(tkWindow,text="Password").grid(row=1, column=0)
password = StringVar()
passwordEntry = Entry(tkWindow, textvariable=password, show='*').grid(row=1, column=2)

validateLogin = partial(validateLogin, password)

#login button
loginButton = Button(tkWindow, text="Login", command=validateLogin).grid(row=4, column=2)

tkWindow.mainloop()

带有滚动条的代码：

from tkinter import *
from functools import partial


words = ["test", "test", "test", "test", "test", "test", "test", "test", "test", "test", "test", "test", "test", "test"]
def validateLogin(password):
    print(password.get())
    if password.get() == "test":
        newWindow = Tk()
        newWindow.geometry('1800x800')
        newWindow.title("Passwords")
        scrollbar = Scrollbar(newWindow)
        scrollbar.pack(side=RIGHT, fill=Y)
        tkWindow.destroy()
        for index, word in enumerate(words):
            Label(newWindow, text=word).grid(row=index, column=0)

    if password.get() != "test":
        Label(tkWindow, text="Wrong password!", fg='red').grid(row=5, column=2)

#window
tkWindow = Tk()
tkWindow.geometry('250x100')
tkWindow.title('Passwords')

#password label and password entry box
passwordLabel = Label(tkWindow,text="Password").grid(row=1, column=0)
password = StringVar()
passwordEntry = Entry(tkWindow, textvariable=password, show='*').grid(row=1, column=2)

validateLogin = partial(validateLogin, password)

#login button
loginButton = Button(tkWindow, text="Login", command=validateLogin).grid(row=4, column=2)

tkWindow.mainloop()

标签： pythontkinter

解决方案

我在这里看到了两个问题，第一个问题是您尝试将其.grid用于显示文本的标签，并.pack用于滚动条。您不能在同一个窗口中同时.grid使用两者。.pack

.grid(row=index, column=0)这是我通过替换来纠正此问题的代码.pack(anchor = W)

from tkinter import *
from functools import partial


words = ["test", "test", "test", "test", "test", "test", "test", "test", "test", "test", "test", "test", "test", "test"]
def validateLogin(password):
    print(password.get())
    if password.get() == "test":
        newWindow = Tk()
        newWindow.geometry('1800x800')
        newWindow.title("Passwords")
        scrollbar = Scrollbar(newWindow)
        scrollbar.pack(side=RIGHT, fill=Y)
        tkWindow.destroy()
        for index, word in enumerate(words):
            Label(newWindow, text=word).pack(anchor = W)

    if password.get() != "test":
        Label(tkWindow, text="Wrong password!", fg='red').grid(row=5, column=2)

#window
tkWindow = Tk()
tkWindow.geometry('250x100')
tkWindow.title('Passwords')

#password label and password entry box
passwordLabel = Label(tkWindow,text="Password").grid(row=1, column=0)
password = StringVar()
passwordEntry = Entry(tkWindow, textvariable=password, show='*').grid(row=1, column=2)

validateLogin = partial(validateLogin, password)

#login button
loginButton = Button(tkWindow, text="Login", command=validateLogin).grid(row=4, column=2)

tkWindow.mainloop()

第二个问题是滚动条实际上​​没用。我不相信滚动条本身可以在 tkinter 中的窗口/框架上工作。这意味着在修复了原始问题后，标签和滚动条现在都将加载，但滚动条将什么也不做。 这是我从谷歌找到的一个快速教程，它可能会帮助你让滚动条工作

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