Very good, I'm studying, I'm a beginner
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中国DOS联盟论坛 » DOS批处理 & 脚本技术（批处理室） » [Reference for Arrangement] The Role of Symbols under CMD/DOS
StickyI
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StickyI
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Floor 136
Posted 2008-11-18 16:04 · 中国 北京 海淀区 联通
Floor 137
Posted 2008-11-19 19:06 · 中国 福建 龙岩 联通
Very comprehensive and powerful, collected it, thank you
Floor 138
Posted 2008-11-21 10:13 · 中国 湖北 武汉 电信
Learn by reference
Floor 139
Posted 2008-11-27 09:05 · 中国 海南 海口 电信
Very helpful! Thanks~~
Floor 140
Posted 2008-12-01 12:25 · 中国 吉林 长春 联通
goooooooood
Floor 141
Posted 2008-12-04 12:13 · 中国 福建 泉州 电信
Thanks for sharing, saved it!
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Floor 142
Posted 2008-12-05 09:51 · IANA 局域网IP(Private-Use)
You're welcome!
Floor 143
Posted 2008-12-08 14:44 · 中国 四川 攀枝花 电信
The `@` in front of `echo` is used to prevent the `echo` command itself from being displayed. If you use `&&`, it's a logical operator for command chaining. In this case, using `@echo` just suppresses the echoing of the `echo` command's own prompt. The translation of the code block remains as it is since it's already in English in terms of the code structure, just the explanation of the `@` usage is the interpretation. So the translated content for the code part is:
```
setlocal enableDelayedExpansion
pause
set VAR=before
if "%VAR%" == "before" (
set VAR=after
if "!VAR!" == "after" @echo If you see this, it worked
)
```
```
setlocal enableDelayedExpansion
pause
set VAR=before
if "%VAR%" == "before" (
set VAR=after
if "!VAR!" == "after" @echo If you see this, it worked
)
```
Floor 144
Posted 2008-12-11 01:41 · 中国 湖北 武汉 电信
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Originally posted by rs369007 at 2008-12-8 14:44:
setlocal enableDelayedExpansion
pause
set VAR=before
if "%VAR%" == "before" (
set VAR=after
if "!VAR!" == "after" @echo If you see this, it w ...
When using if judgment, you need to follow it with a command. And && is a command connector, not a command category, which will cause an error.
Floor 145
Posted 2008-12-15 10:48 · 中国 福建 厦门 电信
Hey. Most of it I can't understand.
Only used >, >>, |
Only used >, >>, |
Floor 146
Posted 2008-12-17 18:10 · 中国 河南 濮阳 电信
Really thank you very much, LZ
Floor 147
Posted 2009-01-09 16:21 · 中国 内蒙古 呼和浩特 联通
It seems there might be some input error. If it's supposed to be a word like "xiaola" or something else, but as it is "xiiela", it's not a recognized standard English or Chinese term in a common context. Please check and provide the correct content.
Floor 148
Posted 2009-02-02 12:37 · 中国 江苏 无锡 电信
Study study
Floor 149
Posted 2009-02-03 14:06 · 中国 广东 珠海 电信
Just looking for knowledge in this area everywhere. Exactly what is needed
Floor 150
Posted 2009-02-07 15:39 · 中国 甘肃 白银 电信
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Posts 39
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:
① The label locator indicates that the subsequent string is a label, which can be the object of the goto command. For example, if a ":begin" label is defined in a batch file, the "goto begin" command can be used to jump to the position after the ":begin" label to execute batch commands.
Is there a clear ending symbol or mark for the label locator here? How to identify the end of the string after the label? Write an example to illustrate, thank you! !
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