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如何在 Windows 中的批处理脚本中正确执行 FOR 循环

tag-icon • tag-icon windows command-line batch
如何在 Windows 中的批处理脚本中正确执行 FOR 循环

我正在尝试从 bash 脚本进行转换，这就是我想到的。
当我尝试运行它时，我收到the syntax of the command is incorrect错误。我跟着这个帖子并写下了命令。这个批处理脚本有什么问题？

REM This scripts downloads the mnist data and unzips it.
SET wget="../../tools/3rdparty/bin/wget.exe"
SET gunzip="../../tools/3rdparty/bin/gunzip.bat"

ECHO "Downloading..."

FOR %%G IN (train-images-idx3-ubyte train-labels-idx1-ubyte t10k-images-idx3-ubyte t10k-labels-idx1-ubyte)
DO
    %wget% --no-check-certificate http://yann.lecun.com/exdb/mnist/%%G.gz
    %gunzip% %%G.gz

ECHO "Done."

答案1

REM This scripts downloads the mnist data and unzips it.
SET wget="../../tools/3rdparty/bin/wget.exe"
SET gunzip="../../tools/3rdparty/bin/gunzip.bat"

ECHO "Downloading..."

FOR %%G IN (train-images-idx3-ubyte train-labels-idx1-ubyte t10k-images-idx3-ubyte t10k-labels-idx1-ubyte) DO (
    %wget% --no-check-certificate http://yann.lecun.com/exdb/mnist/%%G.gz
    %gunzip% %%G.gz
)
ECHO "Done."

如果在 for 循环中使用许多命令，则需要用 () 括号括起来。

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