Question

这是新手，因此对基本问题表示歉意我正在尝试设置一个输入框以接受字母和数字不幸的是，我只能通过使用str（）将此字段设置为数字我曾尝试弄乱代码，但不允许我使用字母我应该使用什么代替str（）？如您在我的代码示例中所见，我只能将用户名和密码设置为数字值，而不是字母数字值我相信我已经从tk导入了所有正确的模块我是否正确设置了以下定义？ -self.Username = StringVar（） -self.Password = StringVar（）

谢谢

    from tkinter import*
    import tkinter.messagebox
    from tkinter import ttk
    import random
    import time
    import datetime

def main():
root = Tk()
app = Window1(root)

class Window1:
def __init__(self, master):
    self.master =master
    self.master.title("Notification Monitoring System")
    self.master.geometry('1350x750+0+0')
    self.master.config(bg ='white')
    self.frame = Frame(self.master, bg ='white')
    self.frame.pack()

    self.Username = StringVar()
    self.Password = StringVar()

    self.lblTitle = Label(self.frame, text = 'Welcome to Notification Monitoring', font=('arial',50,'bold'), bg='white',
                          fg='black')
    self.lblTitle.grid(row=0, column=0, columnspan=2, pady=40)
    #==============================Frames================================================================
    self.LoginFrame1 = LabelFrame(self.frame, width=1350, height=600
                           ,font=('arial',20,'bold'),relief='ridge',bg='pale green', bd=20)
    self.LoginFrame1.grid(row=1, column=0)

    self.LoginFrame2 = LabelFrame(self.frame, width=1000, height=600
                           ,font=('arial',20,'bold'),relief='ridge',bg='pale green', bd=20)
    self.LoginFrame2.grid(row=2, column=0)
    #==============================Label And Entry=======================================================
    self.lblUsername=Label(self.LoginFrame1, text = 'Username',font=('arial',20,'bold'),bd=22,
                           bg='pale green', fg='black')
    self.lblUsername.grid(row=0,column=0)
    self.txtUsername=Entry(self.LoginFrame1,font=('arial',20,'bold'),textvariable= self.Username)
    self.txtUsername.grid(row=0,column=1, padx=119)

    self.lblPassword=Label(self.LoginFrame1, text = 'Password',font=('arial',20,'bold'),bd=22,
                           bg='pale green', fg='black')
    self.lblPassword.grid(row=1,column=0)
    self.txtPassword=Entry(self.LoginFrame1,font=('arial',20,'bold'),show='*', textvariable= self.Password)
    self.txtPassword.grid(row=1,column=1, columnspan=2, pady=30)

    #==============================Buttons===============================================================

    self.btnLogin = Button(self.LoginFrame2, text = 'Login', width = 17,font=('arial',20,'bold'),
                           command =self.Login_System)
    self.btnLogin.grid(row=3,column=0, pady=20, padx=8)

    self.btnReset = Button(self.LoginFrame2, text = 'Clear', width = 17,font=('arial',20,'bold'),
                           command =self.Reset)
    self.btnReset.grid(row=3,column=1, pady=20, padx=8)

    self.btnExit = Button(self.LoginFrame2, text = 'Exit', width = 17,font=('arial',20,'bold'),
                          command =self.iExit)
    self.btnExit.grid(row=3,column=2, pady=20, padx=8)
    #==============================Buttons===========================================================
def Login_System(self):
    u =(self.Username.get())
    p =(self.Password.get())
    if (u ==str(123456789) and p ==str(987654321)):
        self.newWindow = Toplevel(self.master)
        self.app = Window2(self.newWindow)
    else:
        tkinter.messagebox.askyesno("Notification Monitoring System", "Invalid login details")
        self.Username.set("")
        self.Password.set("")
        self.txtUsername.focus()
def Reset(self):
    self.Username.set("")
    self.Password.set("")
    self.txtUsername.focus()

def iExit(self):
    self.iExit = tkinter.messagebox.askyesno("Notification Monitoring System", "Confirm you want to exit")
    if self.iExit > 0:
        self.master.destroy()
    else:
        command = self.new_window
        return

def new_window(self):
    self.newWindow = Toplevel(self.master)
    self.app = Window2(self.newWindow)

class Window2:
def __init__(self, master):
    self.master =master
    self.master.title("Notification Monitoring System")
    self.master.geometry('1350x750+0+0')
    self.master.config(bg ='cadet blue')
    self.frame = Frame(self.master, bg ='powder blue')
    self.frame.pack()

    #====================================================================================================
    #==============================New window code here==================================================





    #===================================================================================================




if __name__== '__main__':
root = Tk()
application = Window1(root)
root.mainloop()

Answer 1

您的问题尚不清楚，但我会尽力回答。要将输入作为数字，请使用：

>>>a = int(input("Enter   :"))
Enter   :5
>>>print(a*5)
25

将字符串设置为闲置状态的文本

1 个答案: