Question

我正在尝试将LoginWindow和mainWindow分成不同的模块/文件。我首先在我的mainWindow中创建了一个名为bgWindow的函数，以避免关闭应用程序并在文件中调用该函数。在完成loginWindow的代码时，我遇到的一个问题是弄清楚一旦用户成功从login_user函数登录而又不引起循环依赖的情况下如何打开主窗口。

我确实尝试使用from mainWindow import mainScreen，但这会导致另一个mainLoop()。

mainWindow.py：

def mainWindow():
    print("Go to main Window")

def bgWindow():
    screen = tk.Tk()
    width = 1024
    height = 620

    screen.title("Inventory Management System")

    screen_width = screen.winfo_screenwidth()
    screen_height = screen.winfo_screenheight()
    x = (screen_width/2) - (width/2)#adjust width by 2
    y = (screen_height/2) - (height/2)
    screen.geometry("%dx%d+%d+%d" % (width, height, x, y))
    screen.resizable(0, 0)
    screen.config(bg="#98BDF0")

    label1 = tk.Label(text = "Welcome to the Simple Inventory Management System", width = "300", height="2", bg = "#6a84a8", font = ('Calibri', 20))
    label1.pack()

    screen.after(250, startupWindow)
    screen.mainloop()

bgWindow()

loginWindow.py：

import mainWindow

def login_user():
    userLogInfo = logUsername.get()
    passLogInfo = logPassword.get()

    cursor.execute("SELECT * FROM employeeUser WHERE username = ? and password = ?",(userLogInfo, passLogInfo))
    loginUser = cursor.fetchone()

    if userLogInfo == "" or passLogInfo == "":
        lblResultLog.config(text="Please fill in the entire field!", fg="red")

    ```
    elif loginUser is not None:
        print("Login Success")
        loginScr.destroy()
        startupScreen.destroy()
        mainWindow.mainWindow()
    ```

    else:
        lblResultLog.config(text="Invalid username or password!", fg="red")
        logUsername.set("")
        logPassword.set("")

有没有办法在不引起循环依赖的情况下从不同的模块打开窗口？

0 个答案: