Programmer Group

As an old MOOC network( https://www.imooc.com/ )Fans, remember that there are many free path courses at the beginning of mooc.com. It's a good way to get started with a language. Now mooc.com has developed the charging mode and added many higher-level courses, which is a good thing, but the original free path can not be found. If there is an or ...

[title link] 　　http://www.lydsy.com/JudgeOnline/problem.php?id=3307 [Abstract] First of all, all the changes of this problem can be handled at one time. If there is an edge (u,v)(u,v), put a + 1 + 1 mark on u,vu,v respectively, put a − 1 − 1 mark on LCA (U, V), Dad (U, V)) LCA (U, V), Dad (U, V)). ...

1: Install toolkits wget, vim, and gcc yum install -y wget yum install -y vim-enhanced yum install -y make cmake gcc gcc-c++ 2: Download nginx installation package wget http://nginx.org/download/nginx-1.6.2.tar.gz 3: Install dependency package yum install -y pcre pcre-devel yum install -y zlib zlib-devel yum i ...

nginx.conf user www www; # Nginx's worker processes run users and user groups worker_processes 4; # Number of startup processes, usually set equal to the number of CPUs #worker_processes auto; #The following parameters specify which cpu is assigned to which process, generally speaking, there is no special specific ...

IP related statistics Statistics of IP access (number of independent IP access) awk '{print $1}' access.log | sort -n | uniq | wc -l View the IP access of a certain period of time (4-5 points) grep "07/Apr/2017:0[4-5]" access.log | awk '{print $1}' | sort | uniq -c| sort -nr | wc -l View the top 100 IP S with the most frequent access ...

HpuTimetableAPI Background open interface of [HPU timetable] software It includes the whole course library of the second semester 2017-2018 of Henan University of technology 23 colleges, 901 classes, 5647 courses, 20241 course records Rubbing class function Sharing courses Scan code import course management Course library ma ...

Configure static element expiration time The browser will cache static files (pictures, CSS, JS) in the computer by default when visiting the website. So the next time you visit, you don't have to download remotely. How long is the cache? The browser will have its own mechanism to clear the cache. Or it can be set on the remote ...

Recently, we are using the Phalcon 3.3 framework, the local environment is wampserver, and php7.0 is selected. It is found in the project that using curl to request other interfaces of the project or other interfaces of the project report errors. If you switch to php5.6, you can request normally. After trying many methods, you ...

Read the above before reading this article: https://blog.51cto.com/181647568/2480079 After downloading the script from the last Powershell version of the picture, I received some feedback.1. The last script accesses the database through dll and gets graphid through sql statement, which means there is a dll in addition to the script.And the dat ...

At present, many websites will have a lot of interactive functions, which reduces the user's operational difficulty, thus bringing the third-party login of WeChat to the project real-world function development.For the development content in this example, instead of using native content, use the encapsulated class libraries written by others dir ...