A good programmer generally consists of four aspects: Operation Skills, Knowledge Level, experience layer and ability. I would like to share with you some of the principles in design. I think these things are lessons learned from long-term experience. Every programmer should understand these principles. However, we recommend that you do not adopt dogmatism. You must consider the actual situation when using it. In fact,The following principles can not only be applied to software development, but
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Find the "Wikipedia six-degree separation theory" method. That is to say, we are going to implement from the Edgar · Edel's entry page (Https://en.wikipedia.org/wiki/Eric_Idle) starts with a minimum number of link clicks to find Kevin · Bacon's entry page (Https://en.wikipedia.org/wiki/Kevin_Bacon).You should already know how to write a Python code that gets any page from the Wikipedia site and extracts the
This article introduces some of the principles in software design, which are learned after long-term experience. Every programmer should understand them. I believe it will be of great help to everyone in the process of software design.
Don't repeat yourself (dry)Dry is the simplest rule and the easiest to understand. But it may also be the most difficult to be applied (because to do so, we need to make considerable efforts in generic design, which is not an easy task ). It means that when we di
can perform the following command:%>mysqldump-u root-p--all-databases > Backup092210.sql Enter Password:
Here, in order to be able to access all databases, we need a root permission, so here we need to enter the corresponding password after the prompt. Also, if you are practicing these commands on a development server, take some time to look at the contents of the backup file. You'll see a series of SQL statements, first the statements that were recreated after the tables were deleted, and then
"Lead" Blogger Don in his "WEB2.0 concept interpretation," the article mentions that "Web2.0 is Flickr, Craigslist, Linkedin, Tribes, Ryze, Friendster, Del.icio.us, 43things.com and other websites as the representative, to blog, TAG, SNS, RSS, wiki and other social software applications as the core, according to six-degree separation, XML, Ajax and other new theories and technologies to achieve the Internet next Generation model. ”Facing so many new t
Foundation was set up on the Wikipedia project, and that the server, which was originally placed in Wales and Bomis, was also handed over to the Wikimedia Foundation for use. As a non-profit organization, the Wikimedia Foundation can donate money to sustain its own development.as a concept of "wiki" . I don't know what it was like when Wales made the big decision not to publish commercials on Wikipedia, even when we were speculating with malice, per
"Emacs is not an editor. emacs is a way of thinking about the world, and as such is a way of thinking about editors. the process of editing is Emacs, but Emacs is more than the process of editing. when you ask what Emacs does, youAre asking a question with no answer, because Emacs doesn't do, it is done to. emacs just is... I hope this makes things clearer. "-Scott Dorsey
In short, Emacs is a text editing software, but it can be used to write programs, write papers, write web pages, write blogs
done.Again, the partitioned partition is formatted. In fact, and win installation is the same.# MKFS.EXT4/DEV/SDAIt's important to remember that formatting is here, and if it's not formatted, the direct mount will promptMount:/mnt:wrong FS type, bad-option, bad Superblock ON/DEV/SDA, missing-codepage or helper program, or other error.If you know a little bit about the order, you can actually read it. It says that you may not have formatted the device.Then the
building. The content of fig. yml in this wiki is in the wikimedia-docker directory. The content is as follows:
wiki2: image: 'nickstenning/mediawiki' ports: - "8880:80" links: - db:database volumes: - /data/wiki2:/datadb: image: "mysql:5.7.5" expose: - "3306" environment: - MYSQL_ROOT_PASSWORD=defaultpassImage: used to specify the image. If the image does not exist locally, fig will try to use
hours 3306/tcp wikimediadocker_db_1
Iii. fig. yml
Fig. yml is used to configure the specific content of image building. The content of fig. yml in this wiki is in the wikimedia-docker directory. The content is as follows:
wiki2: image: 'nickstenning/mediawiki' ports: - "8880:80" links: - db:database volumes: - /data/wiki2:/datadb: image: "mysql:5.7.5" expose: - "3306" enviro
MediaWiki installation under WindowsFor friends who have just contacted the wiki, configuring a server environment, installing and running MediaWiki is a very troublesome thing, here, I try to use the easy-to-understand language, the installation process of MW (MediaWiki, hereinafter) under Windows.MW is developed using PHP, PHP is a recently mature web scripting language, in order to run a PHP-based program, you need to configure PHP operating enviro
, navigation, context menus, printing and more, while taking a Dvantage of the same performance and HTML5 technologies available in the Google Chrome Web browser.CEF supports a variety of programming languages and can be easily integrated into new and existing programs. The design revolves around both performance and ease of use. The basic framework includes the C and C + + programming interfaces, exposing the interface through a local library, which isolates the host program and complex chromiu
C + + UI framework
Name
Platform
Description
MFC
Windows
http://en.wikipedia.org/wiki/Microsoft_Foundation_Classes
WTL
Windows
http://en.wikipedia.org/wiki/Windows_Template_Library
Owl
", "
outdated
VCL
", "
Outdated, cannot used by VC/GCC?
Python crawler BeautifulSoup recursive fetch instance detailed
Profile:
The main purpose of crawlers is to crawl the content that is needed along the network. The essence of them is a recursive process. They first need to get the content of the page, then analyze the page content and find another URL, and then get the page content of the URL, repeating this process.
Let's take Wikipedia as an example.
We want to extract all the links from the Kevin Bacon entry in Wikipedia to other terms.
#-*-C
This article mainly introduces detailed information about the Python crawler package BeautifulSoup recursive crawling instance. For more information, see The Python crawler package BeautifulSoup recursive crawling instance.
Summary:
Crawlers primarily aim to crawl the desired content along the network. They are essentially a recursive process. They first need to obtain the content of the webpage, analyze the content of the page, find another URL, and then obtain the page content of the URL, and
Moinmoin1.8.3 is finally installed. Write down the steps for future use. Since apache2, Python, and moinmoin are not understood, they are all rigid steps:
1. Open the terminal and switch to the administrator privilege.
Sudo-I
2. Install apache2
Apt-Get install apache2
3. Download moinmoin1.8.3
Official Website
4. Decompress moinmoin 1.8.3 tar.gz to a directory where/opt/moinmoin-1.8.3 is used. See the/opt/moinmoin-1.8.3/docs/install.html document before installation.
5. Install the/opt/moinmoin-
Preface
The previous two articles talk about project management tools at the code level. This article will introduce the knowledge management tools, which are also part of project management. When it comes to knowledge management, what do you think? Woven network? Find a node? Yes, this is personal knowledge management. What about a project or an enterprise? How should enterprises build networks and find nodes. You must have heard of the word wiki. Co
file Backup092210.sql, you can perform the following command:
%>mysqldump-u root-p--all-databases > Backup092210.sql Enter Password:
Here, in order to be able to access all databases, we need a root permission, so here we need to enter the corresponding password after the prompt. Also, if you are practicing these commands on a development server, take some time to look at the contents of the backup file. You'll see a series of SQL statements, first the statements that were recreated
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