2

说明：  多人聊天，单人聊天，注册模拟数据库，多线程，TCP(Multi-person chat, single chat, registration simulation database)

1．在选择装入背包的物品时，对每种物品I只有两种选择，即装入背包或不装入背包。不能将物品I装入背包多次，也不能只装入部分的物品I。 2．物品的种数，重量、价值，背包的容量要求输入； 3．算法中加入剪枝函数（对重量已经超过限制重量的子树不搜索）； -1. In the selection of the items into the backpack, for each of the items I have only two choices, that is loaded or not loaded backpack backpack. Items should not be many times I load backpack can not only part of the goods loaded I. 2. Number of species items, weight, value, capacity backpack for the importation 3. Algorithm to add pruning function (of weight over the weight limit does not search sub-tree)

说明：  激光振荡器内从左向右（IL）以及从右向左（IR）循环的功率模拟。(Power simulation of left-to-right (IL) and right-to-left (IR) cycles in laser oscillator)

STM32F103RCT6矩阵键盘，4×4键盘，按键串口打印(STM32F103RCT6 Matrix Keyboard, 4*4 Keyboard, Key Serial Port Printing)

这个是从图片中导出pcb元件封装的小软件,很有用的(this is derived from the pictures pcb components Packaging small software very useful)

本文件介绍了Windows中的热键，熟练使用它们可以为我们带来极大的方便。-This document describes the Windows, a hotkey, skillfully use them can bring to us great convenience.

使用simulink实现变压器的仿真生成的C代码(C code generated by transformer simulation using Simulink)

特征归一化matlab程序，可行归一和列归一(Characteristics of Matlab procedures, and the column belongs to a possible normalization)

pip for Python2.7，Python的插件，用于安装其他插件(PIP for Python2.7, Python plugin, used to install other plug-ins)

说明：  THe MCQS of Artificial Intelligence