[文本处理] 批处理怎样根据一个文件的内容查找另一个文件的指定列？

lengguoyong

有文件1.txt
-176.250000 89.750000
-175.750000 89.750000
-175.250000 89.750000
-174.750000 89.750000
-174.250000 89.750000
和文件2.txt
-179.750000 89.750000 0.936815
-179.250000 89.750000 0.936815
-178.750000 89.750000 0.937381
-178.250000 89.750000 0.937381
-177.750000 89.750000 0.936225
-177.250000 89.750000 0.936225
-176.750000 89.750000 0.925175
-176.250000 89.750000 0.925175
-175.750000 89.750000 0.930261
-175.250000 89.750000 0.930261
-174.750000 89.750000 0.927604
-174.250000 89.750000 0.927604
-173.750000 89.750000 0.915246
-173.250000 89.750000 0.915246
-172.750000 89.750000 0.914859
-172.250000 89.750000 0.914859
-171.750000 89.750000 0.912408
-171.250000 89.750000 0.912408
-170.750000 89.750000 0.914096
-170.250000 89.750000 0.914096
-169.750000 89.750000 0.916220
怎样根据1.txt中的每行数据找到2.txt中对应行的第三列数据并输出到3.txt啊。

@echo off 
For /F "tokens=1,2 delims= " %%i In (1.txt) do 
( For /F "tokens=1,2,3 delims= " %%a In (2.txt) do ( if %%a%%b EQU %%i%%j echo %%c) )>>3.txt
pause>nul
复制代码

我自己试写的代码运行不起来，请各位大侠看看怎么回事啊！！！

bluewing009

你好，请注意发帖格式与论坛规则的要求，建议楼主修改一下标题。

详情请见：
http://www.bathome.net/thread-963-1-1.html  第九条
http://www.bathome.net/thread-4054-1-1.html

关于你的问题，请参考findstr命令

saogz

@echo off
    for /f "tokens=1,2* delims= " %%i in (1.txt) do (
    findstr /I /c:"%%i %%j" 2.txt >> .tmp
    )
    
    for /f "tokens=3 delims= " %%i in (.tmp) do (
    echo %%i >> 3.txt
    )
del .tmp
pause
复制代码

saogz

@echo off
    setlocal enabledelayedexpansion
    for /f "tokens=1,2* delims= " %%i in (1.txt) do (
    for /f "tokens=3 delims= " %%a in ('findstr /I /c:"%%i %%j" 2.txt') do (
    echo %%a >> 3.txt
    )
    )
pause
复制代码

CUer

回复 1# lengguoyong


你的代码稍微修改一下即可：

@echo off 
(for /f "delims=" %%i in (a.txt) do (
    for /f "tokens=1,2,3 delims= " %%a in (b.txt) do (
        if "%%a %%b" equ "%%i" (
            echo,%%c
        )
    )
))>c.txt
复制代码

CUer

回复 4# saogz


你的findstr不如楼主直接比较的效率高吧