James Hoffman's SQL tutorial is a very useful and interesting tutorial with lots of links to even more SQL information.
James Hoffman的SQL指导教程(英)是一个非常有用和有趣的指导教程，它带有到更多SQL信息的大量链接。
Very useful novice tutorial, very easy to download to the phone, hoping novice starting from here.
说明：非常实用的新手教程，下载到手机上非常方便，希望新手从这里开始出发。
In this tutorial you will learn a very useful and simple technique that will help you animate a walk cycle for creatures with anywhere from 2 to 200 limbs.
在本教程你将学习一个非常有用的，简单的技术，将帮助您随时随地与动画从2到200四肢行走的动物一周期。
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