依據之前提到的創建方式,grid布局設計UI,設計登錄用戶名和密碼檢查函數。
from tkinterimport *
def LoginCheck():
name = txtName.get()
password = txtPassword.get()
name_len =len(name)
password_len =len(password)
if name =="TestName" and password =="Python":
msgLabel['text'] ='登錄成功'
elif? name =="TestName" and password !="Python":
msgLabel['text'] ='密碼錯誤'
txtPassword.delete(0,password_len)
else:
msgLabel['text'] ='用戶名錯誤'
txtName.delete(0,name_len)
? txtPassword.delete(0, password_len)
wnd = Tk()
lblName = Label(wnd, text='User Name:')
lblName.grid(row=0, column=0, sticky=W)
txtName = Entry(wnd)
txtName.grid(row=0, column=1, sticky=E)
lblPs = Label(wnd, text='密碼:')
lblPs.grid(row=1, column=0, sticky=W)
txtPassword = Entry(wnd)
txtPassword["show"] ='*'
txtPassword.grid(row=1, column=1, sticky=E)
btn = Button(wnd, text='登錄', command=LoginCheck)
btn.grid(row=2, column=1, sticky=E)
# Message
msgLabel = Label(wnd, text='')
msgLabel.grid(row=3)
wnd.mainloop()
運行效果如下:
可輸入不同的用戶名和密碼檢測邏輯上設計是否正確。
用戶名錯誤:
密碼錯誤:
登錄成功: