idc878787 当前离线
一级士官
@echo off for /f "delims=" %%i in (a.txt) do (if not defined %%i set %%i=A&echo %%i>>b.txt)复制代码
hfxiang 当前在线
上尉
gawk "!a[tolower($0)]++" a.txt>b.txt复制代码
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