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DOS，代表着自由开放与发展，我们努力起来，学习FreeDOS和Linux的自由开放与GNU精神，共同创造和发展美好的自由与GNU GPL世界吧！
@echo off & setlocal enabledelayedexpansion
set /a num=0
for /f %%i in ('type test.txt') do (
set/a num+=1
if !num! EQU 1 (echo %%i;>test.txt) else echo %%i;>>test.txt)
pause>nul
sed "s/.*/&;/" urfilesed "1s/.*/&；/;2,$s/.*/&;/" urfile@echo off & setlocal enabledelayedexpansion
set /a num=0
set test=
if exist test-a.txt del /q /f test-a.txt
for /f "delims=" %%i in (test.txt) do (
set/a num+=1
set test=%%i
echo !test!;>>test-a.txt
)sed就是好用，可惜我不会，那个正则表达式太高深啦，看不懂！我晕