生成一段代码，用.bat文件实现当变量为A时获取.cvs文件第二行前五列内容，当变量为B时获取.cvs第三行前五列内容。

@echo off
if "%1" == "A" (
for /F "tokens=1-5 delims=," %%a in (xx.csv) do (
echo %%a %%b %%c %%d %%e
)
) else if "%1" == "B" (
for /F "skip=2 tokens=1-5 delims=," %%a in (xx.csv) do (
echo %%a %%b %%c %%d %%e
)
)