save project

diy1.py

 username = "python"    
 username = "python"    
 userpassword = "123456"    
 userpassword = "123456"    
 while True:
 while True:
+    if i>0:
         name = input("请输入用户名")
         name = input("请输入用户名")
         password = input("请输入密码")
         password = input("请输入密码")
-    if username==name and userpassword==password
-        print("登陆成功")
+        i -= 1
+        if name == username and password == userpassword:
+            print("登录成功") 
             break
             break
-    elif name != username:
-        print("用户名不存在 请重新输入")
-    else:
+        if name != musername:
+            print("用户名错误 请重新输入")
+            continue
+        if password == userpassword:
             print("密码错误 请重新输入")
             print("密码错误 请重新输入")
+    else:
+        print("你的账户已被锁定 请一小时后再来") 
+        exit()    
 print("欢迎来到贝尔编程")
 print("欢迎来到贝尔编程")
\ No newline at end of file