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网吧计费系统: 会员卡信息管理（注册、充值、注销、修改密码） 会员持卡上机（上机、验证、结算打印清单）(Internet Billing System: membership card information management (registration, recharge, write-off, Change Password) membership card on the machine (the machine, verify, print the list of settlement))

Java中String.format的用法(String.format usage in Java)

演示如何应用newrb函数构建一个径向网络，并对一系列数据进行逼近( Demonstrates how to apply newrb build a radial network function, and approximate number of data)

The method setPrefix raises a INVALID_CHARACTER_ERR if the specified prefix contains an illegal character.

根据ArcSoft的工具包设计的简单人脸识别DEMO，仅供学习。APPID等需要到ArcSoft注册一个应用获得 开发环境准备：###开发使用到的软件和工具：Jdk8、mysql5.7、libarcsoft_face.dll(so)、libarcsoft_face_engine.dll(so)、libarcsoft_face_engine_jni.dll(so)、idea注：libarcsoft_face.dll(so)、libarcsoft_face_engine.dll(so)、libarcsoft_face_engine_jni.dll(so)、app-id、sdk-key可以到虹软官网 http://ai.arcsoft.com.cn/ 免费申请下载本地配置：配置环境(推荐jdk8，mysql5.7，maven3，idea)引擎库libarcsoft_face、libarcsoft_face_engine、libarcsoft_face_engine_jni。把dll或so文件拷贝到java.library.path所包含的路径下,注意区分X86和X64，和当前jdk版本一致。初始化项目 创建数据库arcsoft_face_demo，执行脚本arcsoft_face_demo.sql使用idea启动项目修改配置文件srcmainesourcesapplication.properties填写数据库地址：spring.datasource.druid.url填写数据库用户名：spring.datasource.druid.username填写数据库密码：spring.datasource.druid.password填写人脸识别id：config.freesdk.app-id填写人脸识别key：config.freesdk.sdk-key启动项目右键Application，选择Run ‘Application’项目访问地址http://127.0.0.1:8080/demo

超级精美界面显示素材 各种风格拥有尽有 (Super fine material interface displays a variety of styles has to do there)

j2ee登陆界面 输入用户名和密码登陆 (login start if you must write your nameand password first)

说明：  如今是网络化的电子信息时代，在广阔的Internet网络中有各种各样的电子商城，它们可以使客户通过网络购物、浏览商品、查询订单和销售排行。通过对电子商务网站订购环境以及购物过程的调查研究。(Today is a network of electronic information age, in the vast Internet network, a wide variety of electronic mall, they can enable customers to online shopping, browse products, check orders and sales ranking. Order by e-commerce sites and shopping environment for the process of investigation.)

java系列编程中的mybatis练习，mybatis小练习(Mybatis exercise in java series programming)

这是一个进程同步问题的例子，互相学习一下(This is an example of the process of synchronization problem, learn from each other about)