1. Java8种基本类型：byte char shortint long double float booleanByte:8位Short:16位Int:32位Long:64位Float:32位Double:64位2. ListsetmapList:有序；

转自：http://www.scrumcn.com/agile/scrumknowledgelibrary/scrum.htmltabid5(https://www.oschina.net/action/GoToLink?urlhttp%3A%2F%2Fwww.scrumcn.com%2Fagile%2Fscrumknowledgelib

tidb批量数据导入命令tidb数据导出命令1.设置mysql的binlog格式为rowshowvariableslike'binlog_format'2.将mysql数据导出./bin/mydumperhmysqlip P3306urootppasswordt16F64Bdata

原文链接: dosync异步转同步使用child\_process实现(https://my.oschina.net/ahaoboy/blog/4962490)https://github.com/Zemnmez/dosync(https://www.oschina.net/action/GoToLink?urlhttps%3A%2F%

效果如下：!(http://static.oschina.net/uploads/space/2016/0218/170430_QStH_159896.png)理解：Xfermode的16总模式如图!(http://static.oschina.net/uploads/space/2016/0218/170632_Jmbz_15989

​    在Mongo中都知道字符串类型大小比较都是以ASCII进行比较的，所以无法真实比较字符串类型的数值大小!(https://oscimg.oschina.net/oscnet/e467c5ffae2e46f6168a36e682d01fc358d.png)​   　　比如查询age大于3的：db.getColle

http://www.swig.org/Doc2.0/Android.html(原文好像被墙，特转)18SWIGandAndroidOverview(https://www.oschina.net/action/GoToLink?urlhttp%3A%2F%2Ftranslate.goog

http://www.swig.org/Doc2.0/Android.html(原文好像被墙，特转)18SWIGandAndroidOverview(https://www.oschina.net/action/GoToLink?urlhttp%3A%2F%2Ftranslate.goog

转：Redis的删除机制、持久化主从(https://www.oschina.net/action/GoToLink?urlhttps%3A%2F%2Fwww.cnblogs.com%2Fzhaoyunlong%2Fp%2F9893201.html)

字符串（引号）：只有四种情况如下name"我是编程高手"name'我是编程高手'name"""我是编程高手"""name'''我是编程高手'''加法：n1"alex"n2"sb"n3"df"n4n1n2n3print（n4）"alexsbdf"乘法：n