wsjxwj

呵呵，其实我是看了8楼的方法，再改了一点就得出了楼主的第二个题目的答案了

::A1
@echo off
setlocal enabledelayedexpansion
for /f "tokens=*" %%a in (a.txt) do (
    set var=%%a
    set change=!var:他娘的=TND!
    echo !change!
)
pause>nul

::A2
@echo off
setlocal enabledelayedexpansion
for /f "tokens=*" %%a in (a.txt) do (
    set var=%%a
    set change=!var:他娘的=!
    echo !change!
)
pause>nul