串聯Windows Shell中不工作

Question

顯然這個批處理文件應該返回給定爲自變量的輸入文件並置，但它不工作：

mybatchfile.bat example1.txt example2.txt 

的：

set files= 
for %%i in (%1 %2 %3 %4 %5 %6 %7 %8) do (
    echo %%i 
    set files=%files% %%i 
) 

echo "the file list is %files%" 

時調用預期結果應該是：

example1.txt 
example2.txt 
the file list is example1.txt example2.txt 

但在最後一行中只有「example2.txt」。任何想法？？？

Answer 1

您需要啓用延遲變量擴展（請注意下面的代碼擴展!files!）：

set files= 
setlocal EnableDelayedExpansion 
for %%i in (%1 %2 %3 %4 %5 %6 %7 %8) do (
    echo %%i 
    set files=!files! %%i 
) 
endlocal & set files=%files% 
echo "the file list is %files%"