批量格式化文件时间
一、常用命令 -command: tells powershell to run the following command and return immediately
ls: list all matching files at the path specified
foreach-object: run the following block on each file that ls found
$_.LastWriteTime = Get-Date: for each file, set the LastWriteTime to the value returned by Get-Date (today’s date and time)
$_.CreationTime = Get-Date: for each file, set the CreationTime to the value returned by Get-Date (today’s date and time)……