3GPP

对电脑鼠的介绍以及阐述，从最简单到如梦，为介绍性材料(The introduction of the computer mouse and to describe, from the most simple to the dream, the introductory material)

基于python语言的机器学习实战书籍对应源代码(Machine learning actual combat books corresponding source code based on Python language)

说明：  kotlin app using firestore as database

使用viola-jones算法实现人脸检测并将人脸剪裁出来，通过统计被剪裁人脸的个数实现课堂出勤人数的统计(Face detection using Viola-Jones algorithm, and cut out the face, through the statistics of the number of faces cut to achieve class attendance statistics)

表达式二叉树的实现。输入任意一个前序中序或后序表达式，可生成对应的表达式二叉树并树状打印，之后用户可以选择以前序中序或后序将表达式再次输出。-expression of the realization of a binary tree. An arbitrary input before the order or sequence after sequence expressions, which will generate the corresponding binary tree and the tree expression Print, after users can choose before the order or sequence after sequence of expression of a recurrence.

This one of the good tutorial about SQL for beginners.

说明：  交通流元胞自动机，用于交通流预测的元胞自动机(Cellular Automata of Traffic Flow)

一java的小应用程序，在游戏中，用户随意抽出四张扑克牌，用加减乘除的方法将它们连接起来，使得结果等于24。-a small application, in a game in which users randomly picked four cards using the arithmetic method of connecting them, making the results mean 24.

这首歌满好听 的啊-song full of nicely ah

9054 数据手册 9054 数据手册 9054 数据手册-9054 datasheet