of sun?
Google found that the original RedHat is far less troublesome than the win system. There is an alternative system (Alternatives System) mechanism in RedHat to abstract the locations and trademarks of different software or different versions of the same software, so as to eliminate the need to replace the environment. Update-alternatives is the implementation of this mechanism. Therefore, you can us
Finally, the complete implementation of C ++ 11 GCC 4.8.1.
Upgrade your system.
The following steps install gcc4.8.1 with content from: http://askubuntu.com/questions/312620/how-do-i-install-gcc-4-8-1-on-ubuntu-13-04
First install a software
apt-get install python-software-properties
Then
sudo add-apt-repository ppa:ubuntu-toolchain-r/testsudo apt-get updatesudo update-alternatives --remove-all gcc sudo update-al
the operation. Then download the tar.gz package for the corresponding JDK, and put it in:/var/cache/oracle-jdk7-installer (JDK7)/var/cache/oracle-jdk8-installer (JDK8)Below, and then install the installer once. Installer will use the TAR.GZ package you downloaded by default3. Set the system default JDKJDk7sudo update-java-alternatives-s java-7-oracleJDK8sudo update-java-alternatives-s java-8-oracleIf the J
corresponding JDK, and put it in:/var/cache/oracle-jdk7-installer (JDK7)/var/cache/oracle-jdk8-installer (JDK8)Below, and then install the installer once. Installer will use the TAR.GZ package you downloaded by default3. Set the system default JDKJDk7sudo update-java-alternatives-s java-7-oracleJDK8sudo update-java-alternatives-s java-8-oracleIf the JDK7 is installed and the JDK8 is installed, to switch be
installer because of a firewall or some other reason, you can interrupt the operation. then download the corresponding JDK tar.gz package, put in:
/var/cache/oracle-jdk7-installer (JDK7)
/var/cache/oracle-jdk8-installer (JDK8)
Below, and then install the installer once. Installer will default to use the tar.gz package you downloaded 3. Set system default JDK
JDk7
sudo update-java-alternatives-s java-7-oracle
JDK8
sudo update-java-
1: Installed through the PPA (source) mode.
2: Download the installation package through the official website.
1th is recommended here because the JDK upgrade can be easily obtained by Apt-get upgrade method. install using the ppa/source method Add PPA
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
Install Oracle-java-installer
Jdk7:
sudo apt-get install oracle-java7-installer
jdk8:
sudo apt-get install Oracle-java8-installer
The installer will prompt you to agree to Oracle
individual)If you cause installer to download slowly due to firewalls or other reasons, you can interrupt the operation. Then download the tar.gz package for the corresponding JDK, and put it in:/var/cache/oracle-jdk7-installer (JDK7)/var/cache/oracle-jdk8-installer (JDK8)Below, and then install the installer once. Installer will use the TAR.GZ package you downloaded by default3. Set the system default JDKJDk7sudo update-java-alternatives-s java-7-or
The zero-based NODEJS series article will show you how to benefit JavaScript as a server-side script through NODEJS Framework web development. The NODEJS framework is a V8-based engine and is the fastest JavaScript engine available today. The Chrome browser is based on V8, and opening 20-30 pages is a smooth one. The NODEJS Standard Web Development Framework Express helps us quickly build web sites that are more efficient than PHP and have a lower learning curve. Very suitable for small websites
Step by step teach you how to use webpack to build a vue scaffold (ultra-detailed explanation and comment), webpackvue
As one of the three front-end frameworks, Vue has gained 44,873 stars on github so far, which shows that it has quietly become the mainstream. In October, Vue released 2. after a period of exploration and reading official tutorials and APIs, I learned that version 2.0 has made many adjustments based on Version 1.0, and many APIs have been discarded.
This article will introduce i
Reprint Please indicate the source: Wang 亟亟 's way of Daniel
The last mention of react's content is almost 1 years, and then the year flat chest and feel that progress is not much, and then recently because of business needs and then are doing some front-end work.And then all the way from NPM init all the way to configure Package.json to write scripts those, now the scaffolding line to wear, or sigh lazy people's world 6666
The old rules before the b
conditions, loops, and other logic as part of an enhanced HTML tag.
Generate code
The tools provided by Rails are primarily a set of code generators. I prefer this approach to the development environment that forces me to use a rigorous workspace and IDE. Rails won't get in the way of you, but it will save you most of your hand-programmed work-or, by providing a "free" preliminary (First-pass) bracket (scaffolding), at least help you easily divide
F: Installation of VUE-CLI Scaffolding
G: Create Blogvue Project
H: Brief description of the overall project document
All right, start the show today.
0, today to complete the lower left corner
RedPart of
A, Vue Common ide--I'm a development tool, I'm the one working.
A good tool to start saving too much time, increase efficiency, so as to achieve a multiplier effect, as a. NET siege lion, I almost every day in Visual Studio, this cl
team maintains, and we want to avoid using them;
After you have identified the name, please search the NPM website to find out if the name has been occupied, if it has been occupied, please change the name.
In the example in this article, let's call this plugin grunt-mytest.
2. New Project
The plug-in name is identified, the new project is created. For example, our engineering path is: D:\code\grunt-mytest.
3. New GitHub Warehouse
Although not necessary, it is necessary to establish a warehouse
..Lrwxrwxrwx. 1 root 16 Oct 13 default->/usr/java/latestDrwxr-xr-x. 9 root 4096 Oct 13 jdk1.8.0 _ 20Lrwxrwxrwx. 1 root 21 Oct 13 latest->/usr/java/jdk1.8.0 _ 20
However, it is not actually used so far. We need to use the alternative tool to manage it.
For soft links, if we direct the configuration content to/usr/java/default/bin/xxx and install jdk 1.9 or 2.0 in the future, you just need to directly modify the soft link, instead of having to do it again. therefore, I will use/usr/java/default/a
Recently installed in Ubuntu16.04 python3.5 and the system comes with the python2.7.13, summarize the different versions of the switching problem.
Alias: Aliases
BASHRC: Personal Profile
First, modify the Python version (for users)To modify a Python version for a particular user, simply create one (alias) in its home directory alias . Open the user's ~/.bashrc file and add the new alias information to modify the Python version that is used by default.Alias python= '/usr/bin/pyt
the TAR.GZ package you downloaded by default3. Set the system default JDKJDK8sudo update-java-alternatives-s java-8-oracleIf the JDK7 is installed and the JDK8 is installed, to switch between the two, you can:JDK8 Switch to Jdk7sudo update-java-alternatives-s java-7-oracleJDK7 Switch to Jdk8sudo update-java-alternatives-s java-8-oracle4. Test whether the JDK was
ubuntu 16.04本身是自带python的,他本身是自带2.X和3.X,两个版本,默认的是2.X。这里记录一下如果在版本间切换以及如何把python版本切换到3.X下的方法。1. See the version of Python installed in Ubuntu and the Python version currently in useLs/usr/bin/python*python--version2. Set Update-alternatives to toggle Python versionShow python in place of version informationUpdate-alternatives--list pythonShow after executionUpdate-alternatives:error:no
First install sun1.6, here I install the directory is/usr/java/jdk1.6.0_45
Then set the profile file/etc/profile (add the file at the end of the file)
sudo vim/etc/profile
Export java_home=/usr/java/jdk1.6.0_45
export jre_home=/usr/java/jdk1.6.0_45/jre
export classpath=.: $JAVA _home/lib/dt.jar: $JAVA _home/lib/tools.jar
export path= $PATH: $JAVA _home/bin
Source/etc/profile
Then install openjdk1.7, you can install it in Software Center, and then execute the following command after installat
Tags: ons file permissions maintenance Ali awt install Oracle ISP download systemDeepin System Manual Installation Oracle Jdk8 detailed tutorialsDownload the JDK archive from Oracle website and extract the files using sudo tar-zxf jdk***, which I placed under the HOME/DIY/JAVA/JDK path.JDK file path:/home/diy/java/jdk/jdk1.8.0_152JDK environment variable ConfigurationModifying a configuration filesudo vi/etc/profileAfter entering, knock on I, then you can edit the content.Add content at the end
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