raspberry的64bit img下载

https://www.raspberrypi.com/software/operating-systems/#raspberry-pi-os-64-bit

一般人还需要这个工具：

镜像写入文件win：https://downloads.raspberrypi.org/imager/imager_latest.exe

or linux：https://downloads.raspberrypi.org/imager/imager_latest_amd64.deb

or mac：https://downloads.raspberrypi.org/imager/imager_latest.dmg