我有這段代碼，問題是當我完成程序并重新啟動時，它不會將電子郵件保存在屏幕上，只保存在email.txt.我怎樣才能在屏幕上添加電子郵件和密碼，因為即使我重新啟動文件，電子郵件仍然出現在屏幕上，而不僅僅是在email.txt？from tkinter import *from tkinter import messageboximport tkinter.messageboxroots = Tk()roots.title("Email's save")roots.geometry("500x500")e = Entry(roots)e.grid(row=0, column=1)e.focus_set()p = Entry(roots, show="*")p.grid(row=1, column=1)p.focus_set()textEmail = StringVar()textPassword = StringVar()def callback(): textEmail.set(textEmail.get() + e.get() + "\n") textPassword.set(textPassword.get() + p.get() + "\n")def cleargrid(): textEmail.set("") textPassword.set("")def delete(): answer = tkinter.messagebox.askquestion('Delete', 'Are you sure you want to delete this entry?') if answer == 'yes': cleargrid()def save(): email_info = e.get() password_info = p.get() file = open("emails.txt", "a") file.write(email_info) file.write("\n") file.write(password_info) file.write("\n") file.write("=" * 20) file.close()def EmailPassword(): email = Label(roots, text="Email: ", font=('Courier', 14)) email.grid(row=0, sticky=W) passoword = Label(roots, text="Password: ", font=('Courier', 14)) passoword.grid(row=1, sticky=W) saved_email = Label(roots, text="Saved Email", font=('Courier', 14)) saved_email.grid(row=15, column=0) saved_password = Label(roots, text="Password", font=('Courier', 14)) saved_password.grid(row=15, column=15) write_email = Label(roots, textvariable=textEmail, font=('Courier', 14)) write_email.grid(row=20, column=0) write_password = Label(roots, textvariable=textPassword, font=('Courier', 14)) write_password.grid(row=20, column=15) btn_save = Button(roots, text="Save", command= lambda:[callback(), save()]) btn_save.grid(row=10, column=2, sticky=W) btn_del = Button(roots, text="X", fg="red", command=delete) btn_del.grid(row=60, column=20) roots.mainloop()EmailPassword()
2 回答
繁花不似錦
TA貢獻1851條經驗 獲得超4個贊
刪除您當前的“emails.txt”。它的格式不正確，無法使以下內容正常工作。
改成save這樣。注意\n你的=*20
def save():
with open("emails.txt", "a") as f:
f.write(f'{e.get()}\n{p.get()}\n{"="*20}\n')
添加此功能
def get_emails():
try:
with open("emails.txt", "r") as f:
for i, line in enumerate(filter(lambda t: t != f'{"="*20}\n', f.readlines())):
if not i%2:
textEmail.set(f'{textEmail.get()}{line}')
else:
textPassword.set(f'{textPassword.get()}{line}')
except FileNotFoundError:
pass
在前面添加這一行roots.mainloop()
get_emails()
在旁邊：
您真的要將未加密的電子郵件和密碼信息存儲在文本文件中嗎？
RISEBY
TA貢獻1856條經驗 獲得超5個贊
為了使電子郵件地址出現在開頭，您必須從文件中獲取該信息。只需添加另一個打開文件（如果存在）、讀取地址并設置變量的函數textEmail
def set_email():
try:
file = open("emails.txt", "r")
emails = file.readlines()
last_address = emails[-2][:-1] # line before last line without the line break
file.close()
textEmail.set(last_address)
except:
pass ## There was no file "emails.txt"
如果在定義變量后調用此函數textEmail，您將獲得窗口加載時的地址。
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