In the integrated development environment of Windows (Qt, VC, VS all have this problem), write the C/C + + program about file reading. When it reads 0X1A, it ends unexpectedly. After debugging and checking, it is found that 0X1A is processed as 0XFF (EOF (- 1)) after reading, but there is no such problem of parsing erro ...
Posted by silas101 on Mon, 30 Mar 2020 22:14:17 -0700
PyQt5 Is a set of application frameworks bound to Qt5.He is available in Python 2.x and 3.x.This tutorial uses Python 3.x.
The Qt library is the most useful set of GUI libraries.
PyQt5 is implemented as a set of Python modules.He has more than 620 classes and 6000 functions and methods.He is a multiplatform component running on all major ...
Posted by webdogjcn on Fri, 27 Mar 2020 02:08:13 -0700
docker container is another core concept. Container is a running instance of image. The difference is that the image is a static read-only file, the container has a writable layer required by the runtime, and the application process in the container is running.Virtual machine is to simulate a whole set of operating system. doc ...
Posted by plutoplanet on Sat, 07 Mar 2020 00:32:51 -0800
1, Anoconda building environment name: Foster
1.1 build a virtual environment
Create a virtual environment called foster, in which all future operations will be performed. This can avoid mutual interference between different versions of python or frameworks. python = allows you to specify the version ...
Posted by qadeer_ahmad on Fri, 28 Feb 2020 03:14:20 -0800
1. Backup the nginx root directory
2. View system version
$ cat /etc/issue
Ubuntu 18.04.4 LTS \n \l
1. Create a directory, such as / ramdisk, and then use the tmpfs command to mount part of the memory as a hard disk
mount -t tmpfs -o size=256M tmpfs /ramdisk
Here, I mount the maxi ...
Posted by eideticmnemonic on Thu, 27 Feb 2020 18:23:27 -0800
This tutorial will install ros, px4 toolchain, and gazebo simulation environment in Ubuntu 18
Refer to this tutorial to install ros, px4 toolchain, and gazebo simulation environment in Ubuntu 16
First of all, let's take a look at the corresponding gazebo relationship of Ubuntu versions. Gazebo 9.0 has b ...
Posted by gloveny on Wed, 26 Feb 2020 22:03:03 -0800
In Centos/RHEL system, the file to configure the yum warehouse is the. Repo file under the directory / etc/yum.repo.d /. In Ubuntu system, it is the / etc/apt/sources.list file
The first element of configuring system files is to back up files. Generally, system files are kb level files, which don't oc ...
Posted by iPixel on Tue, 11 Feb 2020 07:46:19 -0800
Processes are also called tasks in linux.
For user space, a process is an instance of program execution.A process can be compared to a human individual: there is only one parent process and there can be multiple child processes; there are more or less valid lives; it takes on certain functi ...
Posted by parthatel on Mon, 10 Feb 2020 21:10:26 -0800
Android source compilation
Before compiling the source code, you need to do some preparation operations. The detailed steps are as follows:
1. Install JDK. Google requires JDK 1.8 to compile the latest version of source code
1) . download JDK1.6 at: http://download.oracle.com/otn/java/jdk/6u45-b06/jdk-6u45-linux-x64.b ...
Posted by joeywoodbury on Sun, 09 Feb 2020 08:49:09 -0800
Total s panoramic camera of ubuntu system is transformed by ROS image
Following a blog post, after the Theta S camera was connected to the ROS system, the image matrix was published on the / image_raw topic. Let's start the file libuvc_camera.launch in the previous blog. At this time, the image has be ...
Posted by Jove on Sat, 08 Feb 2020 00:36:02 -0800