目录引言一、虚拟机安装linux操作步骤二、正式开始安装系统总结引言 在工作中，我们要接触并不同的操作系统，但反复更换我们计算机的系统实在浪费时间，我们可以用虚拟机来解决这个问题，用VMware软件去创立一个虚拟
I am trying to do file browser in a tree form and have a problem to sort it somehow. I use PHP and MySQL for that. I\'ve created mixed (nested set + adjacency) table \'element\' with the following fie
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