save project

diy2.py

@@ -8,7 +8,9 @@ while True:
         break
     if name != username:
         print("用户名不存在,请重新输入!")
+        print("还有"+str(i)"次机会")
         continue
     if password != userpassword:
         print("密码输入有误，请重新输入！")
+        print("还有"+str(i)"次机会")
 print("欢迎来到贝尔编程!")
\ No newline at end of file