save project

code.py

+import tkinter
+
+from tkinter import messagebox
+
+import json
+
+with open("user.txt", "r", encoding="utf-8") as f:
+    info = f.read()
+    users = json.loads(info)
+def login_to_reg():
+    app_login.root.destroy()
+    global app_reg
+    app_reg = My_register()
+    app_reg.show()
+
+def reg_to_login():
+    app_reg.root.destroy()
+    global app_login
+    app_login = My_login()
+    app_login.show()
+
+def register():     
+    name,password1,password2 = app_reg.get_input()
+    if name =="" or password2 == "" or password1=="":
+        messagebox.showwarning("警告", "请填写完整的注册资料")
+    elif name in users:
+        messagebox.showwarning("错误", "用户名已经存在!")
+    elif password1 != password2:
+        messagebox.showwarning("错误", "两次密码不一致!")
+    else:
+        users[name] = password1
+        content = json.dumps(users)
+        with open("user.txt", "w", encoding="utf-8") as file: 
+            file.write(content)
+        messagebox.showinfo("成功", "注册成功")
+        reg_to_login()
+
+def login():       
+    name, password = app_login.get_input()
+    pwd = users.get(name)
+    if pwd == password:
+        messagebox.showinfo("成功", "登录成功")
+    else:
+        messagebox.showwarning("错误", "用户名或密码错误!")
+
+class My_login():       
+    def __init__(self):
+        self.root = tkinter.Tk()
+        self.root.title("登录窗口")
+        self.root.geometry('400x300+500+300')
+        self.root.resizable(width=False, height=False)  # True可以拉伸，False不能拉伸
+
+    def show(self):
+        l = tkinter.Label(self.root, text='您好！请登录', bg='green', 
+            font=('宋体', 15), width=40, height=2)
+        l.place(x=0, y=0)
+        l = tkinter.Label(self.root, text='用户名：', font=("宋体", 12),
+            fg="black")
+        l.place(x=50, y=80)
+        l = tkinter.Label(self.root, text='密  码：', font=("宋体", 12), 
+            fg="black")
+        l.place(x=50, y=140)
+        self.e1 = tkinter.Entry(self.root, show=None, font=('宋体', 14), 
+                  bg="light grey", width=18)  
+        self.e2 = tkinter.Entry(self.root, show='*', font=('宋体', 14),
+                  width=18)  
+        self.e1.place(x=120, y=80)
+        self.e2.place(x=120, y=140)
+        button1 = tkinter.Button(self.root, text='登录', bg="lightblue",
+                  fg="black", width=15, command=login)
+        button1.place(x=60, y=220)
+        button2 = tkinter.Button(self.root, text='注册', bg="lightgreen",
+                  fg="black", width=15, command=login_to_reg)
+        button2.place(x=230, y=220)
+        self.root.mainloop()  
+
+    def get_input(self):   
+        self.name = self.e1.get()
+        self.password = self.e2.get()
+        return self.name, self.password
+
+class My_register():       
+    def __init__(self):
+        self.root = tkinter.Tk()
+        self.root.title("注册窗口")
+        self.root.geometry('400x320+500+300')
+        self.root.resizable(width=False, height=False) 
+
+    def show(self):  
+        self.e1 = tkinter.Entry(self.root, show=None, font=('宋体', 14), 
+                  bg="light grey", width=18)  
+        self.e1.place(x=140, y=80)
+        self.e2 = tkinter.Entry(self.root, show='*', font=('宋体', 14),
+                  width=18)
+        self.e2.place(x=140, y=140)
+        self.e3 = tkinter.Entry(self.root, show='*', font=('宋体', 14),
+                  width=18)
+        self.e3.place(x=140, y=200)
+        lab = tkinter.Label(self.root, text='您好！请填写注册信息',
+              font=('宋体', 15),fg="black", width=40, height=2, bg="green")
+        lab.place(x=0, y=0)
+        lab1 = tkinter.Label(self.root, text='用户名：', font=("宋体", 12),
+               fg="black")
+        lab1.place(x=60, y=80)
+        lab2 = tkinter.Label(self.root, text='密  码：', font=("宋体", 12),
+               fg="black")
+        lab2.place(x=60, y=140)
+        lab3 = tkinter.Label(self.root, text='确认密码：', font=("宋体", 12),
+               fg="black")
+        lab3.place(x=50, y=200)
+        button1 = tkinter.Button(self.root, text='提交', bg="lightblue",
+                  width=15,command=register)
+        button1.place(x=230, y=250)
+        button2 = tkinter.Button(self.root, text='取消', bg="lightgreen",
+                  width=15, command=reg_to_login)
+        button2.place(x=80, y=250)
+        self.root.mainloop()
+
+    def get_input(self):         
+        self.name = self.e1.get()
+        self.password1 = self.e2.get()
+        self.password2 = self.e3.get()
+        return self.name, self.password1, self.password2
+        
+app_login = My_login()
+app_login.show()
\ No newline at end of file

user.txt

-{"admin": "admin", "python": "123456", "a": "1"}
+{"admin": "admin", "python": "123456"}
\ No newline at end of file