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DOS批处理 & 脚本技术（批处理室） » Understanding the interception function of variable characters in CMD

Floor31　stornager	Posted 2007-03-26 06:20
中级用户　Posts 131　Credits 328
I will strive to catch up with the original poster, thank you!

Floor32　lxmxn	Posted 2007-03-27 00:17
版主　Posts 4,938　Credits 11,386
Originally posted by stornager at 2007-3-25 17:20: I want to strive to catch up with the original poster, thank you! 　　Hehe, I hope so～

Floor34　9306516	Posted 2007-04-14 09:08
新手上路　Posts 5　Credits 13
The answer is dark, dark, dark, dark, dark, dark, dark

Floor35　tongwandou	Posted 2007-04-19 11:52
初级用户　Posts 50　Credits 112
This teaching method is great. I can basically extract it, but I don't know what practical value it has?

Floor36　lxmxn	Posted 2007-04-19 13:16
版主　Posts 4,938　Credits 11,386
Regarding tongwandou: The practical value is quite significant. For example, you can extract the first 3 characters of a string, or the last 5 characters, or the characters from the 10th to the 20th, and many of these can be applied.

Floor38　8250	Posted 2007-05-09 09:31
新手上路　Posts 6　Credits 12
Originally posted by lxmxn at 2007-1-16 04:39: 　　goto :eof If it is inside a label, it means to jump out of this label. If it is in other positions of the batch program, it means to jump to the end of the batch program, which means to exit the batch program. First of all, thank you to the moderator for sharing. Secondly, I would like to ask a question: Is :eof a special label different from ordinary labels?

Floor39　bing614	Posted 2007-05-09 11:05
初级用户　Posts 20　Credits 44
Not bad, learned another trick, thanks to the landlord.

Floor40　lxmxn	Posted 2007-05-09 13:29
版主　Posts 4,938　Credits 11,386
Originally posted by 8250 at 2007-5-9 09:31: First of all, thank you to the moderator for sharing. Secondly, I would like to ask a question: Is :eof a special tag different from ordinary tags? :EOF is generally used together with the goto command, which means End Of File, that is, the end of the file. If this goto :EOF is in a batch file, it means jumping to the end of the file, which can be understood as exiting the batch processing. If goto :EOF is in a label program of a batch script program, then it exits the current label and returns to the batch script program. You can understand its function through some exercises.

Floor41　flyinspace	Posted 2007-05-09 13:31
银牌会员　Posts 517　Credits 1,206
Originally posted by lxmxn at 2007-5-9 01:29 PM: :EOF generally works together with the goto command, meaning End Of File, that is, the end of the file. If this goto :EOF is in a batch file, it means jumping to the end of the file, which can be understood as exiting the batch... You can learn about this by using call /? and goto /?

Floor44　bd123456789	Posted 2007-06-17 10:42
中级用户　Posts 216　Credits 360
Great, thank you for the guidance! However, I need to ask a question: What does "pause>nul" mean??? Also, why enable "delayed environment variable expansion" What is its use???

Floor45　tbs198400	Posted 2007-06-17 11:04
初级用户　Posts 22　Credits 46　From 郑州
Hehe, the original poster accidentally met my urgent needs. It's wonderful.

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