for /f "tokens=1*delims=:" %%b in ('dir /on /b /a-d image*.png 2^|findstr /n ".*" ') do ren "%%b" "%%a.png"
As a batch line should do what you ask.
Ah - a small misread.
@ECHO OFF
SETLOCAL ENABLEDELAYEDEXPANSION
rem The following settings for the source directory, destination directory, target directory,
rem batch directory, filenames, output filename and temporary filename [if shown] are names
rem that I use for testing and deliberately include names which include spaces to make sure
rem that the process works using such names. These will need to be changed to suit your situation.
SET "sourcedir=u:your files w o"
SET /a newnumber=0
FOR /L %%b IN (1,1,47) DO IF EXIST "%sourcedir%image%%b.png" ECHO REN "%sourcedir%image%%b.png" "!newnumber!.png"&SET /a newnumber+=1
GOTO :eof
Proposed commands echo
ed for verification. Remove the echo
keyword to activate following verification. Original filelist presented omits image3.png
so result will be 0.png
..45.png
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…