save project

diy2.py

 username = "lyy"
 username = "lyy"
 userpassword = "000"
 userpassword = "000"
 while True:
 while True:
+    if i=3
         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:")
+        i-=i
         if name == username and password == userpassword:
         if name == username and password == userpassword:
             print("登录成功!")
             print("登录成功!")
             break
             break
@@ -10,4 +12,7 @@ while True:
             print("用户不存在，请重输")
             print("用户不存在，请重输")
         if password != userpassword:
         if password != userpassword:
             print("密码错误，请重输")
             print("密码错误，请重输")
+    else:
+        print("已锁定")
+        exit
 print("欢迎")  
 print("欢迎")