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Continue to Chat使用 dd 命令测试 USB 和 SSD 硬盘的读写速度 https://blog.wongcw.com/2018/08/06/%e4%bd%bf%e7%94%a8-dd-%e5%91%bd%e4%bb%a4%e6%b5%8b%e8%af%95-usb-%e5%92%8c-ssd-%e7%a1%ac%e7%9b%98%e7%9a%84%e8%af%bb%e5%86%99%e9%80%9f%e5%ba%a6/