Question

我在从条目小部件中提取变量时遇到了问题，到目前为止，我已经完成了此操作，但我无法找到错误。我正在使用python 3。

from tkinter import *

def main():
    global today,postal,user,expire,cardnum
    root = Tk()
    root.title("Card checker")
    instruction =Label(root, text="Please enter your card details\n")
    namel = Label(root, text="Name: ")
    post = Label(root, text="Postal code: ")
    today_date = Label(root, text="Todays date: ")
    expire_date = Label(root, text="Expiry date ")
    card_number = Label(root, text="Card Number: ")
    date1= ()
    postcode= ()
    name1= ()
    expire1= ()
    cardno = ()

    namel.grid(row=1, column =0)
    post.grid(row=2,  column =0)
    today_date.grid(row=3,  column =0)
    expire_date.grid(row=4,  column =0)
    card_number.grid(row=5,  column =0)
    todaydateE= Entry(root,textvariable=date1)
    postE= Entry(root,textvariable=postcode)
    nameE = Entry(root,textvariable=name1)
    expiredateE= Entry(root,textvariable=expire1)
    cardnumberE= Entry(root,textvariable=cardno)
    nameE.grid(row=1, column =1)
    postE.grid(row=2,  column =1)
    cardnumberE.grid(row=5,  column =1)
    expiredateE.grid(row=4,  column =1)
    todaydateE.grid(row=3,  column =1)

    doneButton = Button(root, text= "Confirm", command=datecheck)
    doneButton.grid(columnspan =2)
    today= date1.get()
    postal= (postcode.get())
    user= name1.get()
    expire= expire1.get()
    cardnum = cardno.get()


def datecheck():
    global today,postal,user,expire,cardnum
    print(postal)

Answer 1

所以你没有正确使用.get（）函数。你也想制作程序，以便在事件发生后你.get（）的东西，否则它将试图得到什么，因为当程序启动时，那里什么都没有。编辑了您的代码，这样如果您点击确认按钮，您将获得输入到输入框中的任何内容

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使用Tkinter（.get）的Python错误

1 个答案: