1.什么是mvc？1.1原始比较初级的设计模式：!(https://oscimg.oschina.net/oscnet/8e5a2a404897fac1a88286924f4dae0d308.png)1.2MVC设计模式!(https://oscimg.oschina.net/oscn

在java中，其应该是先于所有的方法执行。下面是测试代码：1publicclassTest1{2static{3System.out.println("执行静态初始化块test1...");4}5{6System.out.println(

Background：　　当有人对master进行更新之后，你想让已经创建的分支内容更新到master的最新状态，bpan@5CG7022BM2MINGW64/d/GitRep/JIRA_Extensions(master)$gitcheckout20180315//切换到分支下Switchedtobr

错误：!(https://oscimg.oschina.net/oscnet/bd3ee6de36ca5d1542351402ab17d60283e.png)解决方案：在/etc/sysconfig/networkscripts/ifcfgeth0文件中配置DNS信息：vim/etc/sysconfig/networksc

DNS域传送漏洞图片展示现象<strong这里借用一张图片，现在DNS域传送漏洞很不好找了！</strong!(https://oscimg.oschina.net/oscnet/c164811810ca377871735d7128bac2521b5.png)

认识mysql!640?wx_fmtpng(https://oscimg.oschina.net/oscnet/up3e5e1155834815316317525ae86b4dcb.jpg)mysql架构图!640?wx_fmtpng(https://oscimg.oschina.net/oscnet/upc7b6

varSub"123a\bc'4'5:67,89";1.字符串替换：        Sub.replace(''.'/');replace只能替换第一个    Sub.replace(/\\/g,"/");/\\/g：g是全局变量，/\\/是转义符2.字符串截取：

!(https://oscimg.oschina.net/oscnet/03aee5bf5962478dbac80a1f24e0fe78.jpg)Java技术栈www.javastack.cn优秀的Java技术公众号(https://www.oschina.net/action/GoToLink?urlhttps%3A%

1.新建项目将地图API添加进classpath中：!(http://static.oschina.net/uploads/img/201503/22194557_5Zt9.png)2.在activity\_main.xml中添加一个MapView，用来显示地图：<LinearLayoutxmlns:android"http:

作者：KimWuestkamp翻译：Bach(https://www.oschina.net/action/GoToLink?urlhttps%3A%2F%2Fmp.weixin.qq.com%2Fs%2FNnutG4dDnm2zWY5MDiSGpQ)（才云）校对：bot(https://www.oschina.net