[文本处理] 批处理时间提取输出为何不正确？

xk040510

Rem 取2天之前的日期，取回放入变量olddate
echo wscript.echo dateadd("d",-2,date) >tmp.vbs
for /f "tokens=1,2,3* delims=-" %%i in ('cscript /nologo tmp.vbs') do set y=%%i
echo %y% >tmp.txt
for /f "delims=/ tokens=1" %%i in (tmp.txt) do set "y=%%i"
for /f "delims=/ tokens=2" %%i in (tmp.txt) do set "m=%%i"
for /f "delims=/ tokens=3" %%i in (tmp.txt) do set "d=%%i"
echo %y%>> tmp.txt
echo %m%>> tmp.txt
echo %d%>> tmp.txt
if %m% LSS 10 set "m=0%m%"
if %d% LSS 10 set "d=0%d%"
pause
set "nowdate=%date:~0,4%%date:~5,2%%date:~8,2%"
set "olddate=%y%%m%%d%"
pause
del tmp.txt /q /f
del tmp.vbs /q /f
echo 今天的日期：%nowdate%
echo 2天前的日期：%olddate%
pause
复制代码

m变量能够提取出来但是无法写入TXT文件...
还有LSS的匹配貌似无法生效，全部都加了个0上去...
求解释...

Batcher

>>tmp.txt echo,%m%
复制代码

xk040510

原帖由 Batcher 于 2011-3-1 11:55 发表
>>tmp.txt echo,%m%

解释一下喂...

Batcher

批处理重定向符号前置和后置有何区别？
http://bbs.bathome.net/thread-3228-1-1.html