save project

diy1.py

@@ -9,6 +9,7 @@ while True:
     else:
         if username!=a:
             print("用户名错误，请重新输入！")
+            continue
         else:
             print("密码错误，请重新输入！")
 print("欢迎来到贝尔编程！")
\ No newline at end of file