save project

diy2.py

+i=3
 username = "python"
 userpassword = "123456"
 while True:
+    if i>0:
         name = input("请输入用户名:")
         password = input("请输入密码:")
+        i-=1
         if name == username and password == userpassword:
             print("登录成功!")
             break
@@ -10,4 +13,7 @@ while True:
             print("用户名不存在，请重新输入！！！")
         else:
             print("密码输入有误，请重新输入！！！")
+    else:
+        print("你个憨憨，你也不行啊！")
+        exit()    
 print("欢迎来到贝尔编程///")
\ No newline at end of file