问题
This is extension of the code from Why the loop is not running as expected?
Ultimately I want to read values from Report.txt (a comma separated file having values like 1,2,3,4 in a single line) and update these values in some fields of summary.yml (...field10 : var1, field11 :var2,... field25 :var3..) etc. For that I am trying to store values from Report.txt but the variable are not being set. Any help would be highly appreciated
@echo off
setlocal enableextensions disabledelayedexpansion
rem E:\Backups\ code \ Hazard \ test1 \ it0 ... itn
rem ^root ^ %%X ^ %%Y ^ %%~dpc
for /D %%X in ("*") do for /D %%Y in ("%%~fX\*") do for /f "tokens=1,2,*" %%a in ('
robocopy "%%~fY." "%%~fY." Report.txt /l /nocopy /is /s /nc /ns /ts /ndl /njh /njs
^| sort /r 2^>nul
^| cmd /q /v /c "(set /p .=&echo(!.!)"
') do (
copy "%%~fY\it0\summary.yml" "%%~dpc."
setlocal enabledelayedexpansion
set vidx=0
for /F "tokens=1-4 delims=," %%A in (%%~dpc\Report.txt) do (
set "var1=%%A"
set "var2=%%B"
set "var3=%%C"
set "var4=%%D"
)
set var
@echo !var1!> %%~dpc\temp.txt
@echo !var2!>> %%~dpc\temp.txt
@echo !var3!>> %%~dpc\temp.txt
@echo !var4!>> %%~dpc\temp.txt
)
回答1:
Your for /f, with a tokens=* is reading the full line without splitting it.
As the comma is a delimiter, you can split the line with a nested for loop
setlocal enabledelayedexpansion
for /F "tokens=*" %%A in (%%~dpc\Report.txt) do (
for %%x in (%%A) do (
SET /A "vidx=vidx + 1"
set "var!vidx!=%%x"
)
)
set var
Or, to directly split using the for /f you need to indicate the tokens in the line that you need to retrieve
for /F "tokens=1-4 delims=," %%A in (%%~dpc\Report.txt) do (
set "var1=%%A"
set "var2=%%B"
set "var3=%%C"
set "var4=%%D"
)
set var
来源：https://stackoverflow.com/questions/33442530/variable-is-not-set