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中国DOS联盟论坛 » DOS批处理 & 脚本技术（批处理室） » [Solved] About comparisons like LSS EQU in IF expansion. View 2,445　Replies 16
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Original Poster Posted 2007-05-01 03:05　·　 中国 上海 电信张江机房
picat
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if 20070323 LSS 20070423 @Echo good!!

Such a simple command, but it just doesn't output the "good!" character. I looked at the help, and string1 LSS string2 seems to only compare strings. Then, if I want to compare two numbers, how should I do it? I searched the forum, but there seems to be no post about this. Please ask the expert to help, thank you.

[ Last edited by HAT on 2008-11-16 at 12:39 ]
Floor 2 Posted 2007-05-01 03:20　·　 中国 广东 广州 天河区 电信
dikex
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That code can output good!! here for me.
Floor 3 Posted 2007-05-01 03:24　·　 中国 上海 电信张江机房
picat
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Hey, strange. Running it alone is okay, but putting it in a bat file doesn't work.郁闷. Is there any expert to answer?
Floor 4 Posted 2007-05-01 03:31　·　 中国 广东 广州 天河区 电信
dikex
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I just saved it as a bat file and ran it...
Floor 5 Posted 2007-05-01 03:31　·　 中国 上海 电信张江机房
picat
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It works under XP, but not under 2000. It's frustrating.
Floor 6 Posted 2007-05-01 03:39　·　 中国 北京 联通
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Maybe 2000 is treating it as a date. Try replacing LSS with GTR. If it shows GOOD, it means it's handling it as a date. If there's an error, look for other reasons. I don't have 2000, so I can't test.
Floor 7 Posted 2007-05-01 03:39　·　 中国 上海 电信张江机房
picat
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I made a mistake. The above statement is okay, but actually what I want to compare is like this:
if 20070323000000 LSS 20070423000000 @Echo good!!

There are 6 zeros after the date format. It's a log generated by some software, in the format of date + 6 zeros, as above. At this time, it can't be compared in size. I have tested, it seems that it only supports up to 10 digits. Higher than that can't be compared...
Floor 8 Posted 2007-05-01 03:44　·　 中国 新疆 乌鲁木齐 天山区 电信
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Such a large number is being processed by P and cannot be used for comparison or calculation, exceeding the range.
Floor 9 Posted 2007-05-01 03:46　·　 中国 上海 电信张江机房
picat
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Well, I think so too. I made a wrong judgment at first, thinking it was a problem with LSS judgment. Thanks to everyone above.
Floor 10 Posted 2007-05-01 03:46　·　 中国 广东 广州 天河区 电信
everest79
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Can't you just remove those six zeros?
Floor 11 Posted 2007-05-01 04:40　·　 中国 湖北 武汉 电信
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The numerical range that batch processing can directly handle is -2147483648 to 2147483647.

[ Last edited by lxmxn on 2007-4-30 at 06:47 PM ]
Floor 12 Posted 2007-05-01 05:22　·　 中国 浙江 杭州 电信
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Regarding large number processing, the p processing can still be solved; another way is needed; refer to:
http://www.cn-dos.net/forum/viewthread.php?tid=30215&fpage=1
http://www.cn-dos.net/forum/viewthread.php?tid=29097&fpage=1&highlight=%E5%9B%9B%E8%88%8D%E4%BA%94%E5%85%A5

Respectively, addition and division of large numbers are carried out, and the ideas for multiplication and subtraction are similar.. Study by yourself..
Floor 13 Posted 2007-05-01 05:39　·　 中国 上海 电信张江机房
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Wow, thank you, moderator. Just discovered this forum, didn't expect such quick replies～～
Floor 14 Posted 2007-06-20 15:14　·　 中国 陕西 西安 电信
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About the numerical comparison commands in batch processing, like lss, equ, etc. Can you give me a detailed explanation?
Floor 15 Posted 2007-06-20 15:23　·　 中国 广西 玉林 博白县 电信
zh159
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Originally posted by jashonx at 2007-6-20 15:14:
About numerical comparison commands in batch processing, like lss, equ, etc. Can you tell me in detail?

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