save project

diy1.py

@@ -6,10 +6,9 @@ while True:
     if username == name and userpassword == password:
         print("登录成功")
         break
-    elif username != name and userpassword != password:
-        print ("密码与账号错误，请重新输入")
     elif username != name:
         print("用户名不存在，请重新输入")
+        continue
     elif userpassword != password:
         print("密码错误，请重新输入")
     else: