python用tkinter创建一个登录界面

发布网友发布时间：2022-04-24 06:39

我来回答

共2个回答

懂视网时间：2022-04-28 09:39

python做一个登录注册界面的方法：首先初始化一个window界面，并使用画布实现欢迎的logo；然后用代码实现登录和注册按钮；接着并进行登录判断代码；最后完成注册界面即可。

【相关学习推荐：python视频教程】

python做一个登录注册界面的方法：

一、登录界面

1、首先初始化一个window界面

 window = tk.Tk()
 window.title('Welcome to Mofan Python')
 window.geometry('450x300')
 .
 .
 .
 window.mainloop()

2、界面需要一个欢迎的logo,主要使用画布实现

 #welcome image
 #创建一个200X500的画布
 canvas = tk.Canvas(window,height = 200,width = 500)
 #logo的路径
 image_file = tk.PhotoImage(file = 'E:welcome.gif')
 #什么位置插入logo图片
 image = canvas.create_image(0,0,anchor = 'nw',image = image_file)
 canvas.pack(side = 'top')

3、接下来主要是登录界面的代码实现

 tk.Label(window,text = 'Username:').place(x = 50,y = 150)
 tk.Label(window,text = 'Password:').place(x = 50,y = 190)
 
 var_usr_name = tk.StringVar()
 #默认值为MrZhangxd@python.com
 var_usr_name.set('MrZhangxd@python.com')
 var_usr_pwd = tk.StringVar()
 entry_usr_name = tk.Entry(window,textvariable = var_usr_name)
 entry_usr_name.place(x = 160,y = 150)
 
 entry_usr_pwd = tk.Entry(window,textvariable = var_usr_pwd,show ='*')
 entry_usr_pwd.place(x = 160,y = 190)

4、登录和注册按钮的实现代码

 #Login and Sign up button
 # command = usr_login 调用usr_login函数
 btn_login = tk.Button(window,text = 'Login',command = usr_login)
 btn_login.place(x = 170,y = 230)
 btn_sign_up = tk.Button(window,text = 'Sign up',command = usr_sign_up)
 btn_sign_up.place(x = 270,y = 230)

5、进行登录判断代码：主要用函数判断

声明usr_login函数

  def usr_login():
  usr_name = var_usr_name.get()
  usr_pwd = var_usr_pwd.get()
  try:
   with open('usrs_info,pickle','rb') as usr_file:
   usrs_info = pickle.load(usr_file)
  except FileNotFoundError:
   with open('usrs_info','wb') as usr_file:
   usrs_info = {'admin':'admin'}
   pickle.dump(usrs_info,usr_file)
  if usr_name in usrs_info:
   if usr_pwd == usrs_info[usr_name]:
   tk.messagebox.showinfo(title = 'Welcome',message = 'How are you?' + usr_name)
   else:
   tk.messagebox.showinfo(message = 'Error,your password is wrong,try again.')
  else:
   is_sign_up = tk.messagebox.askyesno('Welcome','You hava not sign up yet.Sign up today?')
  
   if is_sign_up:
   usr_sign_up()

登录用户不存在需要注册

二、注册界面

差不多和登录界面一样，然后不进行细细的说明了，有不懂地方的可以给下文邮件地址发邮箱。

 def usr_sign_up():
 def sign_to_Mofan_Python():
 
  np = new_pwd.get()
 
  npf = new_pwd_confirm.get()
 
  nn = new_name.get()
  with open('usrs_info','rb') as usr_file:
  exist_usr_info = pickle.load(usr_file)
  if np!= npf:
  tk.messagebox.showerror('Error','Password and confirm password must be the same!')
  elif nn in exist_usr_info:
  tk.messagebox.showerror('Error','The user has already signed up!')
  else:
  exist_usr_info[nn] = np
  with open('usrs_info.pickle','wb') as usr_file:
   pickle.dump(exist_usr_info,usr_file)
  tk.messagebox.showinfo('Welcome','You have successfully signed up!')
  window_sign_up.destroy()
 window_sign_up = tk.Toplevel(window)
 window_sign_up.geometry('350x200')
 window_sign_up.title('Sign up window')
 
 new_name = tk.StringVar()
 new_name.set('MrZhangxd@python.com')
 tk.Label(window_sign_up,text = 'Username:').place(x = 10,y = 10)
 entry_new_name = tk.Entry(window_sign_up,textvariable = new_name)
 entry_new_name.place(x = 150,y = 10)
 
 new_pwd = tk.StringVar()
 tk.Label(window_sign_up,text = 'Password:').place(x = 10,y = 50)
 entry_new_pwd = tk.Entry(window_sign_up,textvariable = new_pwd,show = '*')
 entry_new_pwd.place(x = 150,y = 50)
 
 new_pwd_confirm = tk.StringVar()
 tk.Label(window_sign_up,text = 'Confirm password:').place(x = 10,y = 90)
 entry_comfirm_sign_up = tk.Entry(window_sign_up,textvariable = new_pwd_confirm,show = '*')
 entry_comfirm_sign_up.place(x = 150,y = 90)
 
 btn_comfirm_sign_up = tk.Button(window_sign_up,text = 'Sign up',command = sign_to_Mofan_Python)
 btn_comfirm_sign_up.place(x = 150,y = 130)

三、运行界面截图

登录界面

注册界面

热心网友时间：2022-04-28 06:47

import tkinter
import tkinter.ttk
import tkinter.messagebox

root = tkinter.Tk()
root.title("登录")
userlabel = tkinter.Label(root,text="用户名：")
passwordlabel = tkinter.Label(root,text="密码：")
userlabel.grid(row=0,column=0)
passwordlabel.grid(row=1,column=0)
userentry = tkinter.ttk.Entry(root)
passwordentry = tkinter.ttk.Entry(root,show="●")
userentry.grid(row=0,column=1,padx=10,pady=2)
passwordentry.grid(row=1,column=1,padx=10,pady=2)

def get():
tkinter.messagebox.showinfo("结果","用户名：" + userentry.get() + "\n密码：" + passwordentry.get())

yes = tkinter.ttk.Button(root,text="确定",command=get)
yes.grid(row=2,column=1)
root.mainloop()

效果图