went

ANSI保存,输出*_cut.*

@echo off
if "%~1"=="" ( echo 请拖动图片文件到bat! & pause & exit )
REM 设置nconvert.exe路径
set "path=%path%;C:\Users\lenovo\Desktop\XnView"
:loop
	call :cutImg "%~1"
	shift /1
if not "%~1"=="" goto :loop
pause&exit

:cutImg
echo 处理: %~1
echo %~x1 | findstr /i "jpg jpeg png bmp gif png" >nul 2>nul || ( 
	echo 非图片文件! 
	echo -----------------------------------------
	goto :eof 
)
set "width=0" & set "height=0"
for /f "tokens=2 delims=:" %%i in ('nconvert -info "%~1" ^| findstr /i "width height"') do (
	call set /a "0/%%width%%" >nul 2>nul && set "height=%%i" || set "width=%%i"
)
echo 原尺寸: %width% %height%
if %width% equ %height% ( echo ----------------------------------------- & goto :eof )
if %width% gtr %height% set "newsize=1920 %height%
if %width% lss %height% set "newsize=%width% 1080"
echo 新尺寸: %newsize%
nconvert -quiet -overwrite -resize %newsize% -o "%~dp1%~n1_cut%~x1" "%~1" && echo 完成!
echo -----------------------------------------
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