China DOS Union
-- Unite DOS · Advance DOS · Grow DOS --Union site: www.cn-dos.net Forum site: www.cn-dos.net/forum
|
China DOS Union-- Unite DOS · Advance DOS · Grow DOS --Union site: www.cn-dos.net Forum site: www.cn-dos.net/forum |
| Guest | Log in | Register | Members | Search | China DOS Union |
|
中国DOS联盟论坛 The time now is 2026-08-13 16:29 |
47,811 topics / 349,897 posts / today 0 new / 48,256 members |
| DOS学习入门 & 精彩文章 （教学室） » [Help] About dready? |
| Printable Version 1,128 / 7 |
| Floor1 hzy | Posted 2003-07-28 00:00 |
| 高级用户 Posts 135 Credits 578 | |
|
When the drive does not exist, why can't it jump to :error like this?
set get= get s "inupt drive letter please : " dready %get% /W IF NOT ERRORLEVEL 0 goto error echo drive OK ! goto ............................. :error echo drive not ready or read-only ----------------------------------------------------------------------------- It only works if written like this instead. Why? set get= get s "inupt drive letter please : " dready %get% /W IF ERRORLEVEL 1 goto error IF ERRORLEVEL 2 goto error IF ERRORLEVEL 255 goto error echo drive OK ! goto ............................. :error echo drive not ready or read-only |
|
| Floor2 Roy | Posted 2003-07-28 00:00 |
| 管理员 Posts 1,633 Credits 4,869 | |
|
Because Errorlevel is not exact. For example, if Errorlevel is 5, that means errorlevel is equal to 0 through 5.
|
|
| Floor3 hzy | Posted 2003-07-28 00:00 |
| 高级用户 Posts 135 Credits 578 | |
|
Then is it okay if I write it like this?
set get= get s "inupt drive letter please : " dready %get% /W IF ERRORLEVEL 1 IF ERRORLEVEL 2 IF ERRORLEVEL 255 goto error echo drive OK ! goto ............................. :error echo drive not ready or read-only |
|
| Floor4 hunome | Posted 2003-07-28 00:00 |
| 银牌会员 Posts 721 Credits 2,265 | |
|
It should be okay, I guess. Just try it yourself and you'll know.
|
|
| Floor5 hunome | Posted 2003-07-28 00:00 |
| 银牌会员 Posts 721 Credits 2,265 | |
|
Feels like it still won't work.
|
|
| Floor6 Wengier | Posted 2003-07-31 00:00 |
| 系统支持 Posts 10,521 Credits 27,736 | |
|
NO NO NO!
IF ERRORLEVEL 1 means when the value of ERRORLEVEL is >=1 (greater than or equal to 1), not <=1. |
|
| Floor7 hzy | Posted 2003-08-01 00:00 |
| 高级用户 Posts 135 Credits 578 | |
|
Many thanks
|
|
| Floor8 蓝雨v21 | Posted 2004-04-21 00:00 |
| 初级用户 Posts 1 Credits 105 | |
|
This is exactly what I was looking for!
|
|
|
[ Contact the Union admin team -
中国DOS联盟 -
Standard version ] Sponsored by ifanr Inc | © 2001–2023 |