save project

diy2.py

@@ -3,12 +3,16 @@ userpassword = "123456"
 while True:
     name = input("请输入用户名:")
     password = input("请输入密码:")
+    i-=1
     if name == username :
         if password == userpassword:
            print("登录成功!")  
+           print("欢迎来到贝尔")       
            break   
         else:
              print("密码错误")
     else:
         print("用户名不存在")  
-print("欢迎来到贝尔编程!")
\ No newline at end of file
+    if i ==0: 
+        print("账号已被锁定")    
+        exit()