[文件操作] [已解决]这个修改文件的批处理如何修改？

@echo off
setlocal enabledelayedexpansion
if !1!.==. (set 1=.\)
if exist !1!setup.iss (
move /y !1!setup.iss !1!temp.iss>nul
for /f "usebackq tokens=*" %%a in ("!1!temp.iss") do (
    set yn=
    echo %%a|findstr "BootOption">nul&&(echo BootOption=0>>!1!setup.iss)&&set yn=1
    if "!yn!"=="" (echo %%a>>!1!setup.iss)
)
del /q !1!temp.iss 1>nul 2>nul
)
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