#osi

e618. Validating a JTextField When Permanently Losing the Focus

Thisexampledemonstratesatextfieldthatvalidatesitscontentswhenitreceivesapermanentfocus-lostevent.Ifthecontentsareinvalid,itdisplaysamodaldialogwithanerrormessag...

e617. Determining the Opposite Component of a Focus Event

Theoppositecomponentistheothercomponentaffectedinafocusevent.Specifically,inafocus-lostevent,theoppositecomponentistheonegainingthefocus.Inafocus-gainevent,theo...

一张非常强大的OSI七层模型图解。。。

源自http://www.colasoft.com.cn/download/protocols_map.php,非常适合小白入门,后面罗列出来方便大家浏览记忆。。。(不经意间看到的,分享一下)HTTP超文本传输协议FTP文件传输协议SMTP简单邮件传输协议TELNETTCP/IP终端仿真协议POP3邮局协议第三版Fin...

UnicodeEncodeError: 'gbk' codec can't encode character 'xa0' in position 263: i llegal multibyte sequence

UnicodeEncodeError:'gbk'codeccan'tencodecharacter'xa0'inposition263:illegalmultibytesequence UnicodeEncodeError:'gbk'codeccan'tencodecharacter'x??'inpositi...

UnicodeEncodeError: 'gbk' codec can't encode character 'xbb' in position

python实现爬虫遇到编码问题:error:UnicodeEncodeError:'gbk'codeccan'tencodecharacter'xXX'inpositionXX解决办法:改变标准输出fromurllibimportrequestimportioimportsyssys.stdout=io.TextIO...

CompositeConfiguration的用法

 publicclassMytest{privatestaticApplicationContextapplicationContext;publicstaticvoidmain(String[]args)throwsException{//获取spring上下文applicationContext=newC...
代码星球 ·2021-02-11

解决:mvn archetype:create Abstract class or interface 'org.apache.maven.artifact.repository.ArtifactRepository' cannot be instantiated

[ERROR]Failedtoexecutegoalorg.apache.maven.plugins:maven-archetype-plugin:2.3:create(default-cli)onprojectstandalone-pom:Unabletoparseconfigurationofmojoorg.apa...

python2.7安装setuptools-36.6.0报ascii' codec can't decode byte 0xce in position 7问题

解决办法1:原文链接:http://blog.csdn.net/all_over_servlet/article/details/45112221修改编码为gbk,修改D:Python27Libtpath.py(位置由个人python安装目录决定)文件中的defjoin(path,*paths)函数,在函数内第一行加入...

Patterns in the Composite Application Library

 InversionofControlhttps://www.codeproject.com/Articles/29271/Design-pattern-Inversion-of-control-and-Dependency DependencyInjectionTheDependencyInjec...

组合优于继承 Composition over inheritance

https://stackoverflow.com/questions/49002/prefer-composition-over-inheritancePrefercompositionoverinheritanceasitismoremalleable/easytomodifylater,butdonotuseac...

What is the difference between UserControl, WebControl, RenderedControl and CompositeControl?

UserControl:Acustomcontrol,endingin.ascx,thatiscomposedofotherwebcontrols.Itsalmostlikeasmallversionofanaspxwebpage.ItconsistsofaUI(theascx)andcodebehind.Cannot...

Losing session data in ASP.NET

BydefaultResponse.Redirectterminatesthreadexecutionandtheremightbearaceconditionsinsettingsessionvariables.ItisdescribedinarticleDon'tredirectaftersettingaSessi...

弹性势能,position,min用法,获取元素的宽

  弹性势能:    网页div移动的mousemove的次数,跟div移动的距离没有关系,跟鼠标移动的快慢有关,浏览器自身有个计数事件,几毫秒  _this.seed*=0.95  //摩擦系数的写法  position:相对于父级的偏移量  offset:相对于文档的偏移量  varheight=[];  Math...

OSI七层模型详解

OSI七层模型通过七个层次化的结构模型使不同的系统不同的网络之间实现可靠的通讯,因此其最主要的功能就是帮助不同类型的主机实现数据传输。完成中继功能的节点通常称为中继系统。在OSI七层模型中,处于不同层的中继系统具有不同的名称。    一个设备工作在哪一层,关键看它工作时利用哪一层...
代码星球 ·2021-01-30

设计模式之组合模式(Composite)详解及代码示例

  组合(Composite)模式的定义:有时又叫作部分-整体模式,它是一种将对象组合成树状的层次结构的模式,用来表示“部分-整体”的关系,使用户对单个对象和组合对象具有一致的访问性。这种类型的设计模式属于结构型模式,它创建了对象组的树形结构。  聚合与组合都是表示整体和个体的关联关系,他们之间最大的区别在于子类被父类...
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