if self.USER_PWD.get(self.user_line.text()) == self.pwd_line.text():
时间: 2024-05-29 18:09:53 浏览: 22
This code is checking if the value of the password associated with the username entered in the user_line text box matches the value entered in the pwd_line text box. If the values match, it will return True, indicating that the user is authenticated. If the values do not match, it will return False, indicating that the user is not authenticated.
相关问题
from tkinter import * import tkinter.messagebox as messagebox class LoginFrame(Frame): def __init__(self, master=None): super().__init__(master) self.master = master self.master.title('登录') self.master.geometry('300x200') self.create_widgets() def create_widgets(self): self.label_user = Label(self.master, text='用户名:') self.label_user.pack() self.entry_user = Entry(self.master) self.entry_user.pack() self.label_pwd = Label(self.master, text='密码:') self.label_pwd.pack() self.entry_pwd = Entry(self.master, show='*') self.entry_pwd.pack() self.btn_login = Button(self.master, text='登录', command=self.login) self.btn_login.pack() self.btn_register = Button(self.master, text='注册', command=self.register) self.btn_register.pack() def login(self): user = self.entry_user.get() pwd = self.entry_pwd.get() # 在这里可以添加验证逻辑 messagebox.showinfo('登录成功', '欢迎回来,%s' % user) def register(self): # 在这里添加注册逻辑 messagebox.showinfo('注册成功', '注册成功,请登录!') root = Tk() login_frame = LoginFrame(root) login_frame.pack() root.mainloop() 在里面用python加入简单的注册逻辑的
好的,以下是一个集成了注册逻辑的 Python 代码示例:
```python
from tkinter import *
import tkinter.messagebox as messagebox
class LoginFrame(Frame):
def __init__(self, master=None):
super().__init__(master)
self.master = master
self.master.title('登录')
self.master.geometry('300x200')
self.create_widgets()
def create_widgets(self):
self.label_user = Label(self.master, text='用户名:')
self.label_user.pack()
self.entry_user = Entry(self.master)
self.entry_user.pack()
self.label_pwd = Label(self.master, text='密码:')
self.label_pwd.pack()
self.entry_pwd = Entry(self.master, show='*')
self.entry_pwd.pack()
self.btn_login = Button(self.master, text='登录', command=self.login)
self.btn_login.pack()
self.btn_register = Button(self.master, text='注册', command=self.register)
self.btn_register.pack()
def login(self):
user = self.entry_user.get()
pwd = self.entry_pwd.get()
# 在这里可以添加验证逻辑
messagebox.showinfo('登录成功', '欢迎回来,%s' % user)
def register(self):
user = self.entry_user.get()
pwd = self.entry_pwd.get()
# 在这里添加注册逻辑
if user.strip() == '' or pwd.strip() == '':
messagebox.showerror('注册失败', '用户名和密码不能为空!')
elif user in users:
messagebox.showerror('注册失败', '该用户名已存在!')
else:
users[user] = pwd
messagebox.showinfo('注册成功', '注册成功,请登录!')
root = Tk()
users = {} # 存储用户信息的字典,键为用户名,值为密码
login_frame = LoginFrame(root)
login_frame.pack()
root.mainloop()
```
以上代码中,我们在 `register` 函数中添加了注册逻辑,包括判断用户名和密码是否为空、判断用户名是否已存在、在 `users` 字典中添加新用户等步骤。同时,我们也对注册成功和失败进行了相应的提示。
select tb_user.id, tb_user.user_name as userName, tb_user.user_pwd as userPwd, tb_user.user_gender as userGender, tb_role.role_name as roleName, from tb_user left join tb_role on tb_user.rid=tb_role.id;纠错
您的SQL查询语句有一个错误:在SELECT语句中,最后一个字段后面有一个逗号,应该将其删除。正确的查询语句如下:
```
SELECT tb_user.id, tb_user.user_name as userName, tb_user.user_pwd as userPwd, tb_user.user_gender as userGender, tb_role.role_name as roleName
FROM tb_user
LEFT JOIN tb_role
ON tb_user.rid=tb_role.id;
```
该查询语句将从`tb_user`表中选取`id`、`user_name`、`user_pwd`、`user_gender`四个字段,以及从`tb_role`表中选取`role_name`字段。使用LEFT JOIN将这两个表连接起来,连接条件是`tb_user.rid=tb_role.id`。
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