在win10中打开Windows PowerShell 批量修改文件前缀名 $Path = "E:\Videos\Python\" $Filter = "*.py" ls $Path -i $Filter -r | foreach {ren $_.FullName $_.FullName.Replace('hm_', '')} 批量修改文件后缀名 $Path = "E:\Videos\Python" $Filter = '*.ev4.mp4' ls $Path -i $Filter -r..