save project

diy2.py

+i=1
 username = "minecraft"
 userpassword = "20100809"
 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
@@ -11,4 +14,7 @@ while True:
             continue
         if password != userpassword:
             print("密码不存在!请重新输入")
+    else:
+        print("你的账户因删除,重新注册")
+        exit()          
 print("欢迎来到贝尔编程!")
\ No newline at end of file