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DOS批处理 & 脚本技术（批处理室） » Invalid numeric comparison operations under if

Floor16　gool123456	Posted 2010-04-22 21:24
初级用户　Posts 76　Credits 89
Actually, I don't really know how IF works. I'm just doing a test here and giving my personal opinion. Specifically, it still depends on everyone's joint efforts!

Floor17　Hanyeguxing	Posted 2010-04-23 20:53
银牌会员　Posts 897　Credits 1,039　From 在地狱中仰望天堂
Originally posted by gool123456 at 2010-4-22 21:24: Actually, I don't know the operation mode of IF exactly. I'm just doing a test and making a personal opinion here. Specifically, it still depends on everyone's joint efforts! The difference between comparing characters and comparing operations can be seen from the following two examples if 33 equ 0x21 echo. Equal if not 33==0x21 echo. Different or if 0 equ 00 echo. Equal if not 0==00 echo. Different

Floor18　gool123456	Posted 2010-04-24 04:19
初级用户　Posts 76　Credits 89
Originally posted by Hanyeguxing at 2010-4-23 20:53: The difference between comparing characters and comparing operations can be seen from the following two examples if 33 equ 0x21 echo. equal if not 33==0x21 echo. different or if 0 equ 00 echo. equal if not 0==00 echo. different Fortunately, Brother hangyeguxing corrected my mistake in time, otherwise I wouldn't know what kind of mess I would make. It seems I still need to study hard! This time it's my wrong understanding of IF comparison! ! ! Just now I tested it and it worked: if 041 equ 0x21 echo. equal if not 33==0x21 echo. different pause if 001 equ 001 echo. equal if not 05==005 echo. different pause Thank you again~!

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