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The time now is 2026-08-12 18:40 		47,811 topics / 349,897 posts / today 0 new / 48,256 members
DOS学习入门 & 精彩文章 （教学室） » ECHO command question [Help]
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Floor1　hpqq Posted 2003-07-16 00:00
初级用户　Posts 6　Credits 120
ECHO OFF
ECHO 12
ECHO ON
@ECHO 34
ECHO 56
ECHO OFF
ECHO 78
@ECHO 90
The screen displays:
12
34
ECHO 56
56
ECHO OFF
78
90 Why does the screen display this result? What do the commands above mean, and what is the reason for this kind of display?
Floor2　pfox Posted 2003-07-16 00:00
银牌会员　Posts 446　Credits 1,451
The following is quoted from hpqq at 2003-7-16 9:10:54:
ECHO OFF
ECHO 12
ECHO ON
@ECHO 34
ECHO 56
ECHO OFF
ECHO 78
@ECHO 90
The screen displays:
12
34
ECHO 56
56
ECHO OFF
78
90 Why does the screen display this result? What do the commands above mean, and what is the reason for this kind of display?



When ECHO ON is in effect, ECHO itself will also be displayed. If you put @ in front of it, then ECHO will not be displayed. When ECHO OFF is in effect, then ECHO is not displayed, and in this case it will not be displayed whether there is an @ or not.
Floor3　dv人 Posted 2003-07-16 00:00
初级用户　Posts 35　Credits 281
What problem is there???????? It doesn't help at all!!!!!
Floor4　hpqq Posted 2003-07-16 00:00
初级用户　Posts 6　Credits 120
Then what does @echo off mean?
Floor5　电吉入侵 Posted 2003-07-17 00:00
初级用户　Posts 377　Credits 1,480
Reply #2 explained it very clearly...
When @ executes ECHO OFF, ECHO itself is not displayed ; ECHO　ＯＦＦ makes the ECHO used afterward not display.
Floor6　沈洁 Posted 2003-07-17 00:00
金牌会员　Posts 1,812　Credits 4,590　From 上海市
@ECHO OFF means that itself and all the prompts below it are not displayed!
If there is an @ in front, it means this command itself is not displayed, only the result is shown!
Floor7　6618 Posted 2003-07-27 00:00
中级用户　Posts 54　Credits 356
The reason I can't become an expert is because I only answer overly simple BATW commands! This question is too simple!
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