exelHandleUp

简单计算器，加减乘除。java程序，可视化。(Simple calculator, subtraction, multiplication and division. java program visualization.)

说明：  video前端模板,有待开发,开发完,就能用,啊啊啊啊啊啊啊(Vieo front-end template, to be developed, developed, can be used, ah ah ah ah ah ah ah ah ah ah ah ah)

正则匹配工具，可匹配任意字符，支持匹配替换，支持对各种标示符的特别处理，界面化操作，简单易用(Regular matching tool to match any character, support matching replacement support special treatment for a variety of identifiers, interface operation, easy to use)

Java 实现的扫雷小程序，有可爱的图片贴图。(java mine sweeper)

获取系统IP地址浏览器java,使用js来获取客户端的Ip地址(Get System IP address browser java, use js to get the client Ip address)

ID3 is data classification algorithm.it is used to generate decision tree from given data set.decision is used to make strategic decision from generated decision tree.

网页实现页面打卡系统,可以用于超长跑步打卡的实现，是非常好用的web工具(Implementation of Web Page Online Carding System)

GPS on Mobile with Java

Pringmvc project how to load in the jars in the spring configuration file

ipdatabase 二叉树快速搜索IP地址数据库 数据 数据源采用2015年广告协会制定的IP地址标准数据库，中国互联网广告行业统一采用的标准IP库。 原理 利用二叉树实现IP查询，首先将10进制IPV4地址转化为二进制构建二叉树，利用二叉树搜索进行搜索，查询时间复杂度log2n，比传统IP库n的查询速度高出一个量级。(Ipdatabase Binary Tree Fast Search IP Address Database data The data source is the standard IP address database formulated by the Advertising Association in 2015, and the standard IP database adopted by the Internet advertising industry in China. principle The binary tree is used to realize IP query. Firstly, the 10-bit IPV4 address is converted into binary to construct a binary tree, and the binary tree search is used to search. The query time complexity log2n is one order of magnitude higher than that of traditional IP library n.)