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DOS批处理 & 脚本技术（批处理室） » Please come in and take a look, why can't this string be concatenated?

Floor1　summerflower	Posted 2009-11-24 12:40
初级用户　Posts 17　Credits 36
The batch file I wrote is as follows: @echo off set a=h for /d %%f in ("c:\documents and settings\*") do set a=%%f\Cookies &@echo %a% What I originally meant was to turn a into a string like c:\documents and settings\username\Cookies, but when I print it with the above command, the value of environment variable a still has not changed and is still the initial value h. Question for all you experts, how exactly should this batch file be written?

Floor2　yishanju	Posted 2009-11-25 00:17
银牌会员　Posts 1,357　Credits 1,488
Take a look at tutorials related to environment variables.

Floor3　lxmxn	Posted 2009-11-26 03:18
版主　Posts 4,938　Credits 11,386
Just change echo %a% to “call echo %%a%%”. You can also do it with delayed variable expansion; there are lots of tutorials on the forum, search for them.

Floor4　summerflower	Posted 2009-11-27 14:20
初级用户　Posts 17　Credits 36
Many thanks, moderator, I understand now