Really learned a lot, also read the post of will Sort. Good stuff, this time I finally understand the variable expansion. Thanks
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中国DOS联盟论坛 » DOS批处理 & 脚本技术（批处理室） » [Original] Detailed Explanation of Variable Delay (Recommended for Beginners)
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Floor 76
Posted 2008-02-19 12:20 · 中国 上海 浦东新区 电信
Floor 77
Posted 2008-03-11 10:46 · 中国 黑龙江 鸡西 虎林市 联通
The building owner has worked hard. This post is very useful for newbies like us, and we must support it a little bit.
Floor 78
Posted 2008-03-11 10:48 · 中国 山东 济南 联通
Collected, thank you, the landlord
Floor 79
Posted 2008-03-11 11:06 · 中国 湖南 株洲 电信
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Originally posted by willsion at 2007-3-13 01:44:
Additionally, there is a question. I don't know if variable delay has side effects. If there are no side effects, then every program header can simply insert the setlocal EnableDelayedExpansion statement. Just like @echo off.
It should have side effects. I encountered it once when writing code (it was a mistake made by myself). As follows:
:begin
@echo off&setlocal EnableDelayedExpansion
.........................................
........................................
..........................................
goto begin
Originally, :begin was supposed to be placed after '@echo off&setlocal EnableDelayedExpansion'. But after running for a while, it always displayed that the setlocal had reached the maximum limit (I can't remember the original text). The variable delay in P also had errors and became invalid. Due to my limited level, I will stop here for narration. Everyone is welcome to express their opinions. The purpose is to learn and improve together.
Floor 80
Posted 2008-03-18 19:53 · 中国 广东 广州 番禺区 电信
Thanks to the LZ, after reading your post, I've learned a lot more.
Floor 81
Posted 2008-03-19 19:01 · 中国 北京 电信
Just solved my current problem:) Thank you. Previously, in the for, I used set /a n=%%f set /a m=n/16 set /a o=n%16... and couldn't get the correct result, but now it's fixed:)
Floor 82
Posted 2008-04-09 23:37 · 中国 湖北 武汉 电信
Good stuff
Floor 83
Posted 2008-04-10 14:36 · 日本
Floor 84
Posted 2008-04-11 10:41 · 中国 四川 内江 电信
Thanks to the moderator, I seem to understand a little! I don't know if it means that those delays make echo and other assignment statements effective, and the assignment can be completed without being affected by the running commands of cmd! Still hope the moderator can give some guidance!
Floor 85
Posted 2008-04-11 13:59 · 中国 江苏 无锡 电信
Newcomer, not bad. Thanks
Floor 86
Posted 2008-05-06 23:50 · 中国 广西 南宁 电信
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I've been wandering in confusion~~ Now I can finally find my way out~~~
So classic~~
Thanks a lot
So classic~~
Thanks a lot
Floor 87
Posted 2008-05-07 18:22 · 中国 辽宁 锦州 电信
Thank you very much, the original poster!
The explanation is very clear, hard work, hard work~~~
The explanation is very clear, hard work, hard work~~~
Floor 88
Posted 2008-05-23 16:15 · 中国 上海 电信
Thank you very much, the problem that troubled me for 2 days has finally been solved. Also, thank you to the forum.
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Posted 2008-05-28 00:36 · 中国 江苏 苏州 电信
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Floor 90
Posted 2008-07-11 14:36 · 中国 广东 东莞 电信
===I need to look at it for a while to get a bit...
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