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ipdatabase-master
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.)
- 2020-06-15 22:35:01下载
- 积分:1
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AirConditioningCode
分布式温控系统基本要求
1. 中央空调是冷暖两用,但一次只能使用一种温控装置。当设置为供暖时,供暖温度控制在25°C~30°C之间,当设置为制冷时,制冷温度控制在18°C~25°C之间。
2. 中央空调具备开关按钮,只可人工开启和关闭,中央空调开启后处于待机状态。当关闭后,不响应来自房间的任何温控请求。当有来自从控机的温控要求时,中央空调开始工作。当所有房间都没有温控要求时,中央空调的状态回到待机状态。
3. 房间内有独立的从控空调机,但没有冷暖控制设备。从控机具有一个传感器,实时监测房间的温度,并与从控机的目标设置温度进行对比,决定是否需要制冷或制热,并向中央空调机发出请求。如果从控机发出的请求和中央空调设置的冷暖控制状态发生矛盾时,以中央空调机的状态优先,即中央空调机不予响应。
4. 从控机只能人工方式开闭,并通过控制面板设置目标温度,目标温度有上下限制。所有房间的初始目标温度由中央空调机设置,每个房间的空调机开启时要读取中央空调机预置的房间温度。温度升降范围应该在目标温度的上下1 °C。房间不考虑大小和管道的分布及大小问题,在达到目标温度后,房间的温度每分钟上下变化0.1°C。
(Basic requirements of a distributed temperature control system
1. Central air conditioning is the well-being of dual-use, but can only use a thermostat device. When set to heating, the heating temperature at 25 ° C ~ 30 ° C, and when set to cooling, the cooling temperature at 18 ° C ~ 25 ° C between.
2. Central air conditioning with switch buttons can only be manually opened and closed, central air-conditioning turned on in standby mode. When closed, do not respond to a request from the room of any thermostat. When the machine from temperature control from the control requirements, central air-conditioning work. When all rooms are no thermostat demand, central air condition back to standby.
3. Room independent from the control air conditioning, but no climate-control equipment. From the control machine with a sensor, real-time monitoring the temperature of the room, and with the goal set from the control unit compares the temperature to determine the need for cooling or he)
- 2021-04-14 20:58:54下载
- 积分:1
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RepastEvacuation-master
repast仿真模拟人群逃生模型,基于java语言描写。(Repast simulation of crowd escape model)
- 2019-05-17 15:28:27下载
- 积分:1
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GexfGenarate
用于生成gexf格式的数据文件,为后续的可视化开发服务(Used to generate data files in gexf format, serving for subsequent visualization development)
- 2020-06-17 03:20:01下载
- 积分:1
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eclipse
eclipse快捷键使用方式,非常齐全,绝对的值(eclipse shortcut keys used, very well equipped, the absolute value of the)
- 2013-08-26 18:19:30下载
- 积分:1
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stumanage
JAVA编写的一个信息管理系统。学生信息管理系统(JAVA prepared an information management system. Student Information Management System)
- 2007-12-03 22:04:59下载
- 积分:1
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commons-digester-1.7-all-src
XML转换开源包,就是让你配置一个 XML 转到 Java Object 对应的程序, 当一些 XML
中特定的属性将会触发一些被称为 rules 的动作, 有一些属性是已经被定义好了,
当然你也可以建立自己所需要的. 而 Digester 也包含了以下高级的特性 :
*能够嵌入你原本的对应方式, 而不会影响你的需求.
*自定义(Customized)的 namespace-aware 的执行, 以至于你可以定义 rules 恰当独特的 XML
命名空间.
*将所有的 Rules 放入 RuleSets 可以简单方便地重复使用在其它需要相同类型的项目之中(XML conversion open-source package, is to allow you to configure an XML to Java Object corresponding to the procedure, when a number of XML specific attributes will trigger a number of actions called rules, some properties are already defined well, of course, you can also create their own needs. and Digester also includes the following advanced features:* can be embedded in your original correspondence, rather not affect your needs.* Custom (Customized) the implementation of the namespace-aware, so that You can define rules appropriate to the unique XML namespace.* all the Rules into RuleSets can simply and easily re-use in other types of projects require the same among the)
- 2010-03-03 17:20:30下载
- 积分:1
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tuixiangzhi
说明: 推箱子小游戏。懒羊羊与灰太狼。java实战项目(Push box games. Lazy sheep and Grey Wolf. Java combat project)
- 2020-06-20 05:20:02下载
- 积分:1
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SpcommSMS
用spcomm控件写的一个短信收发与串口
- 2009-10-10 17:49:00下载
- 积分:1
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WhatisSOA
什么是面向服务体系结构,详细介绍了SOA的各种特点及技术。(What is service-oriented architecture, the SOA detail the various features and technology.)
- 2007-05-17 14:24:03下载
- 积分:1