Table_Operation

预编译的xgboost，有安装示例。。。。。。。。。。。。(Pre-compiled xgboost, there are installation examples...)

协作通信系统中DF协议下的系统仿真，可以实现中断概率的分析。(DF protocol system simulation, collaborative communications system outage probability analysis.)

考虫网的爬虫，可以通过编写url的方式自动将数据爬取到本地(The crawler of the web and automatically writes to excel)

说明：  用傅里叶逆变换得到的不平度曲线变换的到频率谱曲线与原曲线对比(The frequency spectrum curve of the transformation of the irregularity curve obtained by the trigonometric series method is compared with the original curve)

编的不好请各位多指教一个小的智力游戏-It is a small intellective game.It is not done very well,welcome your advice.

在一大串字符串中查找某一个字符或者字符串出现的次数.并且返回次数.-string in a string search for a character string or the number of occurrences. And the number of returnees.

本书详细介绍了合成孔径成像的基本原理，并且通过实际的代码进行仿真实现。(This book describes in detail the basic principles of synthetic aperture imaging, and through the actual code to achieve simulation.)

说明：  基于AT89C51单片机设计制作一个抢答器，具体要求如下： 1、 设计一个智力竞赛抢答器，可同时共8名选手参加比赛，编号为1、2、3、4、5、6、7、8，各用一个按键。 2、 用一个按键作为主持人总开关，用来控制系统的清零和抢答的开始。 3、 抢答器开始后，数码管开始10秒倒计时，若有选手按动抢答按钮，在LED数码管上显示选手的编号，同时灯亮且伴随声音提示；倒计时完成后，选手不能在抢答；有人抢答成功后，要禁止其他选手抢答；最先抢答选手的编号一直保留到主持人将系统清零。(Based on AT89C51 single chip computer, a rush answerer is designed and manufactured. The specific requirements are as follows: 1. Designing an intelligence contest answering machine, which can be attended by 8 competitors at the same time, numbered 1, 2, 3, 4, 5, 6, 7 and 8, each with a button. 2. A key is used as the master switch of the host, which is used to clear the zero of the control system and start the rush response. 3. After the answering machine starts, the digital tube counts down 10 seconds. If a player presses the answering button and displays the player's number on the LED digital tube, the light is on and accompanied by sound prompts. After the countdown is completed, the competitor can't rush to answer. When someone rushes to answer successfully, other competitors are forbidden to rush to answer. The number of the first competitor is kept until the host clears the system.)

灰色狼犬算法适用于多维函数优化问题，注有中文注解(It is applicable to multidimensional function optimization problems, with Chinese annotations.)

说明：  在IDL中读取栅格影像，使用shp文件裁剪栅格影像并将其转存为通用格式(Crop raster images and export them to a common format)