save project

diy2.py

@@ -8,6 +8,7 @@ while True:
         break
     if name != username:
         print("用户名不存在,请重新登录")
+        continue
     if password != userpassword:
         print("用户名不存在,请重新登录")
 print("欢迎来到贝尔编程!")
\ No newline at end of file