百度搜索“换桌面背景 vbs”就行啦~~~还有自动换背景的如：：VBS:
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set ws=createobject("wscript.shell")
ws.regwrite "HKCU\Control Panel\Desktop\wallpaper","图片路径","REG_SZ"
ws.run "RunDll32.exe USER32.DLL,UpdatePerUserSystemParameters"
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BAT:
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@echo off
reg add "hkcu\control panel\desktop" /v "wallpaper" /d "图片路径" /f
RunDll32.exe USER32.DLL,UpdatePerUserSystemParameters
注:
图片路径填上你的图片完整路径,只支持bmp格式图片.
如若要换成无背景桌面的,则不填,赋个空值就行了.
