Programmer Think

1. Error report of chapter and catalog after re collection October 3, 2018 Warning: Invalid argument supplied for foreach() in /usr/share/wwwphp/ptcms/application/novelsearch/model/novelsearch_chapter.php on line 326 vim /usr/share/wwwphp/ptcms/application/novelsearch/model/novelsearch_chapter.php public function getolist($zy ...

http://acm.hdu.edu.cn/showproblem.php?pid=5988 Title: Here are n areas, M roads. Next N lines, each line bi,si, each area has bi individuals, si food. Food is immovable. People need to find food along the road, one by one. Next, line M, vi,ui,ci,pi represent that there is a path between vi and ui. You can walk ci individ ...

Observer mode When an object or event changes, other object instances or events need to be changed accordingly or one to many relationships with corresponding actions can be applied. For example: after the order status changes (payment is completed), a series of corresponding operations such as SMS notification and public number push are requ ...

Author| Jeskson Source|Dada Front End Bistro Express Server Development Create Express applications, Express routes, use of pug view templates Introduction to Express: Let's create Express applications, a Node.js Web application framework that is powerful enough to create a variety of Web applications and HTTP tools for users, and a fully func ...

lnmp environment construction Preconditions Operating system installation: CentOS 6.8 64 bit minimum installation. Configure IP, DNS, gateway and host name Configure firewall and open ports 80 and 3306 Close access wall service iptables stop /etc/init.d/iptables restart? Restart the firewall to make the configuration ef ...

Scrapy Introduction Scrapy introduction 1.Scrapy is an application framework written in pure Python for crawling website data and extracting structural data. It is widely used 2. The power of the framework, users only need to customize and develop a few modules to easily realize a crawler, which is used to grab web content and various pictures ...

1. Understand FormData object FormData is a newly added class of Html5, which can simulate form data Constructor explain FormData (optional HTMLFormElement form) (optional) an HTML form element that can contain any form of form control, including a file input box Method void append(DOMString name, DOMString value) Name for ...

Author| Jeskson Source|Dada Front End Bistro Paging Component First create the project: Paging components, do projects do not write manual code, to think about business logic, how to write, how to write is the best way to present, do the project is not in a hurry, first think about the overall framework, from the bottom of what you want to sta ...

Upload file format POST /php/upload/upload.php HTTP/1.1 Host: 127.0.0.1 Content type: multipart / form data; boundary = identity (customizable) Request body --Identity (customizable, but must be consistent with the request header) Content-Disposition: form-data; name="userfile[]"; filename="head1.png" Content-Type: image/png Bla ...

I haven't updated my blog for a long time. Recently, I met wechat payment for my project. I need to sort out the demand. I need to adjust wechat payment for an activity page!Application framework THINKPHP5.1 Note: for wechat payment, if it is the h5 page, you need to obtain the code in a silent login state, so as to ensure that the parameter o ...