嵌套的for循環變量批次

Question

這裏是我的代碼

set list=test 
del /Q failed_tests.txt 
FOR %%a IN (%list%) DO (
    %%a > output_%%a.txt 

    FINDSTR /C:"[----------]" output_%%a.txt > check_run.txt 

    for /f "delims=" %%x in (check_run.txt) do (
     set content=%%x 
    ) 

    if not %content%=="[----------]" (
     echo Test Does Not Run >> failed_tests.txt 
    ) else (
     echo Test Runs >> failed_tests.txt 
    ) 
) 
type failed_tests.txt 

content似乎總是被設置爲"[----------]"。但是，當output_test.txt/check_run.txt不包含"[----------]"它應該被設置爲一個空字符串。

Answer 1

將@ JosefZ的建議納入答案，所以這顯示爲回答。

SETLOCAL ENABLEDELAYEDEXPANSION 
set list=test 
del /Q failed_tests.txt 
FOR %%a IN (%list%) DO (
    %%a > output_%%a.txt 

    FINDSTR /C:"[----------]" output_%%a.txt > check_run.txt 

    set "content=" 
    for /f "delims=" %%x in (check_run.txt) do (
     set "content=%%x" 
    ) 

    if not "!content!"=="[----------]" (
     echo Test Does Not Run >> failed_tests.txt 
    ) else (
     echo Test Runs >> failed_tests.txt 
    ) 
) 
type failed_tests.txt 

編輯：保留謹慎的雙引號按評論。