save project

my_app.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():  # 登录界面转注册界面
-    global app_reg
     app_login.root.destroy()
-    app_reg=My_register()
+    global app_reg
+    app_reg = My_register()
     app_reg.show()
+
+
 def reg_to_login():  # 注册界面转登录界面
-    global app_login
     app_reg.root.destroy()
-    app_login=My_login()
+    global app_login
+    app_login = My_login()
     app_login.show()
 
+
 def register():  # 注册验证
-    name,password1,password2=My_login.get_input()
-    if name==""or password1=="" or password2"":
-        messagebox.showwarning("警告","不能有空")
+    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("警告","账号已存在")
+        messagebox.showwarning("错误", "用户名已经存在!")
     elif password1 != password2:
-        messagebox.showwarning("警告","密码不一样")
-    else：
-        user[name]=password1
+        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:  # "w"每次写入都覆盖原来的内容
+            file.write(content)
+        # 注册成功，跳往登陆界面
+        messagebox.showinfo("成功", "注册成功")
+        reg_to_login()
+
 
 def login():  # 登录验证
-    pass    
+    # 获取登录表单信息
+    name,password=app_login.get_input()
+    # 获取表格中的密码
+    pwd=users.get(name)
+    # 判断密码是否相同
+    if pwd==password:
+        # 使用 messagebox.showinfo 提示 "成功", "登录成功"
+        messagebox.showinfo("成功","登陆成功")
+    # 否则
+    else:
+        # 使用 messagebox.showwarning 提示 "错误", "用户名或密码错误!"
+        messagebox,showwarning("错误","用户名或密码错误")
+
 
 class My_login():  # 登录窗口
     def __init__(self):
@@ -56,17 +84,17 @@ class My_login():       # 登录窗口
         button1 = tkinter.Button(self.root, text='登录', bg="lightblue",
                                  fg="black", width=15, command=login)
         button1.place(x=60, y=220)
-        button1 = tkinter.Button(self.root, text='注册', bg="lightgreen",
+        button2 = tkinter.Button(self.root, text='注册', bg="lightgreen",
                                  fg="black", width=15, command=login_to_reg)
-        button1.place(x=230, y=220)
-        # 进入消息循环，监听事件
-        self.root.mainloop()
+        button2.place(x=230, y=220)
+        self.root.mainloop()  # 进入消息循环，监听事件
 
     def get_input(self):  # 获取输入的用户名、密码
         self.name = self.e1.get()
         self.password = self.e2.get()
         return self.name, self.password
 
+
 class My_register():  # 注册窗口
     def __init__(self):
         self.root = tkinter.Tk()
@@ -88,7 +116,7 @@ class My_register():        # 注册窗口
 
         # Label文本标签，窗口界面文字：用户名、密码、确认密码
         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")
+                            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")
@@ -102,11 +130,11 @@ class My_register():        # 注册窗口
 
         # 注册界面的提交、取消按钮
         button1 = tkinter.Button(self.root, text='提交', bg="lightblue",
-                  width=15,command=register)
+                                 width=15, command=register)
         button1.place(x=230, y=250)
-        button1 = tkinter.Button(self.root, text='取消', bg="lightgreen",
+        button2 = tkinter.Button(self.root, text='取消', bg="lightgreen",
                                  width=15, command=reg_to_login)
-        button1.place(x=80, y=250)
+        button2.place(x=80, y=250)
         # 进入消息循环
         self.root.mainloop()
 
@@ -116,5 +144,6 @@ class My_register():        # 注册窗口
         self.password2 = self.e3.get()
         return self.name, self.password1, self.password2
 
+
 app_login = My_login()
 app_login.show()
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