In React app, you might create lots of components. We can use index.js to do both 'import' & 'export'. export {TodoForm} from './TodoForm' export {TodoList} from './TodoList' When using it, we just need to import the folder: import {TodoForm, TodoLis…

正常还原的时候报错: Microsoft SQL-DMO (ODBC SQLState: 42000)---------------------------试图扩大物理文件时,MODIFY FILE 遇到操作系统错误 112(磁盘空间不足.).未能创建一个或多个文件.请考虑使用 WITH MOVE 选项来标识有效位置.RESTORE DATABASE 操作异常终止. 但硬盘空间很足够! -------------------------------------------------------…

看源代码的时候,如果可以查看class中的所有方法,可以提高效率.Android Studio 中可以使用快捷键一键显示所有方法的目录. Mac: command + fn + F12 (在mac中的F12键要同时按fn才起作用) Win: control + F12 如果忘记快捷键,也可以点击菜单Navigate -> File Structure 查看. Mac 中的File Structure 窗口…

https://docs.oracle.com/javase/8/docs/technotes/tools/windows/jdkfiles.html Java Platform, Standard Edition Tools ReferenceContents   Previous   Next 3 JDK and JRE File Structure This chapter introduces the JDK directories and the files they contain.…

System-wide File Descriptor Limit Get current value: sysctl fs.file-max modify max fd limit: sysctl -w fs.file-max=10000 User File Descriptor Limit Get current value: ulimit -n modify max fd limit: ulimit -n 10000 use ulimit -a to print all limits of…

We build a project according to its features or based on simple MVC structure. Put all controller into one folder and factory into another folder is hard to maintain and testing. For this project, we have two main features Category Bookmark And one C…

Most of the Android user are using their Android phone just for calls, SMS, browsing and basic apps, But form the development prospective, we should know about  Android internal structure. Android uses several partitions (like boot, system, recovery,…

How to build .apk file from command line Created on Wednesday, 29 June 2011 14:32 If you don’t want to install a number of programs for building your Android project, this article is for you. You will need only JDK, the Android SDK platform tools and…

在新UAT服务器上,需要将tempdb放置在SSD(固态硬盘)上.由于SSD(固态硬盘)特性,所以tempdb的文件只能放置在D盘下面,而不能是D盘下的某一个目录下面. ALTER  DATABASE tempdb MODIFY FILE(name='tempdev', filename='D:\tempdb.mdf') ;   GO   ALTER  DATABASE tempdb MODIFY FILE(name='templog', filename='D:\templog.ldf') ;…

转自:http://engrmosaic.uncc.edu/mosaic-anywhere/remote-desktop-file-format The new Terminal Services client (version 2600 and newer, 5.1.2600.x) introduces quite a few new capabilities.  A major client-side convenience is that connection settings can b…