Web Develop

Define metadata for your model through an inline class "class Meta", similar to the following:class Foo(models.Model): bar = models.CharField(maxlength=30) class Meta: # ...The Model metadata is "any data that is not a field"-such as sorting options,

var page = require('webpage').create();page.onResourceRequested = function(request) { console.log('Request ' + JSON.stringify(request, undefined, 4)); console.log( '---------------------------------------------------------------------'

Transform:scale (x):The syntax is: Transform:scale (x, y). At the same time there are ScaleX, ScaleY special x, y-direction control.For example: Transform:scale (0.5) reduced to half the originalUnlike zoom, scale does not support percent and normal

If JS, CSS external files are used to relative paths, you need to be aware that their relative paths are not the same datum.For example, in the index.html reference to the external JS and CSS files, the two files are referenced by a relative path to

1, download WEBSOCKETPP, address is HTTPS://GITHUB.COM/ZAPHOYD/WEBSOCKETPP, version is 0.7.2, download boost, the address is https://www.boost.org/, the version is 1.6.3.3, Description: WEBSOCKETPP does not have to need boost, if C + + compiled to C1

id= "Sfz_shouchi" name= "Sfz_shouchi" type= " File " onchange=" preimg (this.id, ' sfz_shouchi_img '); " Accept = "image/*" Required ="" >Upload Image js Not sure a lot of pictures

When the framework Webapi project was transferred to the WEBAPI project on the Netcore platform, it was found that the original return file response stream was invalidated under the Netcore platform. The code below returns the PDF file response

Https://startssl.com This site can provide us with a trusted HTTPS certificate for free, here is a brief introduction to the configuration process.First the server needs to install the Mod_ssl.so module for OpenSSL and Apache, and the module needs

System version:CentOS 7.3Apache 2.4Django 1.11Problem descriptionThe Django project involves the upload operation, the upload file name contains Chinese, if use Runserver start the service, no problem!If you deploy the Django project to the Apache

Drawing Basics of HTML5? In the pre-HTML5 era, web front-end developers were unable to dynamically draw pictures on HTML pages? HTM5 has added a element, equivalent to a canvas, can get a Canvasrenderingcontext2d object? CANVASRENDERINGCONTEXT2D

Window.onload = function () {/ * page Strong turn start */ var tmptag = ' https: ' = = Document.location.protocol? false:true; if (Tmptag) { var urls=window.location.href; URLs = urls.replace ("http", "https");

1. Values of the base type and reference typeIn JS, a variable may contain values for two different data types, a base type value, and a reference type value. A primitive type value refers to a simple data segment, whereas a reference type value

ANGULARJS Service $httpa.php　　ANGULARJS Service $http

First of all, I have something to say about the installation of Apache Kylin.Because Apache Kylin itself is just a server, installation deployment is relatively straightforward. But its premise is that Hadoop, Hive, hbase must already be installed

The first contact with the QS Library, when using Axios, is used to encode the post method, in the process of use, exposed to a number of different uses, write here to share.Qs.parseqs.parsemethod to convert a formatted string into an object format,

(keep track of your own review)ConceptSimply understand the class used to connect to the database.Work flowThe ①connection object is used to connect to the database.Two ways to connect: Windows Authentication/SQL Server Authentication Private

Testing Some data on the test machine needs to use the redis extension, lazy yum installed PHP, previously yum install php-pecl-redis.x86_64 can be installed extensions, this time cannot find the installation package, do not toss the manual

Code:*/function redis_connect($config){$host = $config[‘host‘];$port = $config[‘port‘];$pass = @$config[‘pass‘]?:false;$redis = new Redis();$redis->connect($host,$port);if($pass !== false){ $redis->auth($pass);}return $redis;}Test:$config = array(

Page static, there are three ways pseudo static true static, compromise method now I'm doing a compromise.Create an ASP. Link to a page that has not yet been generatedCreating the Httphandle ClassUsing System;Using System.Collections.Generic;Using

InstallationYum-y Install httpd gitCreate a warehouseMkdir/test && cd/testgit init--bare test.gitchown-r apache:apache/test/test.gitVi/test/test.git/config[http] Receivepack = TrueModify Http.confVi/etc/httpd/conf/httpd.conf#  set the directory