树莓派pico的闭环电机控制 基于 pico-sdk (c++) 实现 环境配置 https://github.com/raspberrypi/pico-sdk 安装相关软件包 安装 CMake (3.13以上版本), 和支持arm架构的gcc编译器 sudo apt install cmake gcc-arm-none-eabi libnewlib-arm-none-eabi libstdc++-arm-none-eabi-newlib 配置

Clean Up Disk Space in Linux df df命令可以获取硬盘被占用了多少空间，目前还剩下多少空间等信息，它也可以显示所有文件系统对i节点和磁盘块的使用情况。 df命令各

QGraphic 笔者练习代码repo(持续更新) 参考资料 http://anh.cs.luc.edu/handsonPythonTutorial/graphics.html QGraphicsView Class QGraphicsView Some examples 基本框架 要可视化场景，首先构造一个 QGraphicsView 对象，将要可视化的场景的地址传递给 QGraphicsView 的构造函数。或

sudo apt install qemu-kvm libvirt-daemon-system libvirt-clients bridge-utils sudo adduser ‘username’ libvirt //root sudo adduser ‘[username]’ kvm virsh list –all sudo systemctl status libvirtd sudo systemctl enable –now libvirtd sudo apt install virt-manager virt-install –option1=value –option2=value …

Step 1: Set Up Your Code from selenium import webdriver import os chrome_options = webdriver.ChromeOptions() chrome_options.binary_location = os.environ.get("GOOGLE_CHROME_BIN") chrome_options.add_argument("--headless") chrome_options.add_argument("--disable-dev-shm-usage") chrome_options.add_argument("--no-sandbox") driver = webdriver.Chrome(executable_path=os.environ.get("CHROMEDRIVER_PATH"), chrome_options=chrome_options) Step 2: Add the Buildpacks On Heroku, open your App. Click on the Settings tab and scroll down to Buildpacks. Add the following: Python (Select it from the officially supported buildpacks) Headless Google Chrome: https://github.com/heroku/heroku-buildpack-google-chrome Chromedriver: https://github.com/heroku/heroku-buildpack-chromedriver Step 3: Add the Config Vars Scroll to the config vars section.