Background: Recently, I was developing a C program in Linux and I met an issue – CPU usage is too high. I spent some time…
Requirement: In a project, we need to add some compile flags in order to meet the security requirement or other reasons. In my project, there are…
In this article, I have implemented the following two functions. Read all files from a folder. Read the specific files from a folder. Read all…
The following is the example telling us how to define and use global variable in python. Note: In main function, we don’t need to add…
Static Storage: static, the same with global variables. They will be Initialized to 0 because they are in static area. There are three kinds of staitc…
If you know the “extern” keyword, but you are not clear about where and why do we need it. You are in right place. “extern”…
It’s very important to have comments in WordPress, audiences can make a comment to author to ask some help or give some feedback. I always…
When I finished install Ubuntu 16.04 and minicom package, I’d like to use minicom to access the ttyUSB device. I found there was nothing output…
In this article, I am going to introduce three main things.1. How to install and configure a VNC Server on Centos 7.2. How the VNC…
[Build a Modern Computer from First Principles: Nand to Tetris Part II] is a course in coursera. It is a good course for us to…