1. Prerequisite preparation (python environment configuration and Firefox driver configuration) 1. Firefox browser driver download Driver download URL: http:// https://github.com/mozilla/geckodriver/releases/ Update Firefox to the latest version, and then download the corresponding version of the driver (remember to select the win version) Then copy the downloaded and unzipped driver software to the Firefox installation folder (Note: […]
Tag: brush
Realization of wangEditor5 custom format brush function
Foreword ? Recently, the company needs to add a format brushing function to the wangeditor editor it is using. Personally, I think wangEditor is a rich text editor with a good experience. It also has detailed Chinese documents and is very convenient to use. Achieve the effect: Implementation process 1. First write a class through […]
Direct2D brushes
Microsoft Documentation: Brushes overview This article is a demo compiled through learning from official documents. For the initial sample, please create an ordinary desktop app first. // Test_Direct2D_Brush.cpp : Defines the entry point for the application. // #include “framework.h” #include “Test_Direct2D_Brush.h” #include <d2d1.h> #include <wincodec.h> #pragma comment(lib, “D2d1.lib”) #pragma comment(lib, “Windowscodecs.lib”) #define MAX_LOADSTRING 100 template […]
[Java] Teach you how to implement interface anti-brush
Article directory foreword Idea analysis Implementation Write RedisUtils Define Interceptor? Improve Foreword When we browse the background of the website, if we request frequently, the website will prompt the words “Do not submit repeatedly”, so what is the use of this function, and how is it realized? In fact, this is a processing method of […]
Implementation of PWM drive and PID control algorithm of DC brushed motor in HAL library
This STM32 balance car project uses STM32f103c8t6, the motor drive uses a TB6612 motor drive module with voltage stabilization, and the motor uses a DC Hall-coded brushed motor. First of all, it is necessary to clarify the hardware wiring principle. The port of STM32f103c8t6 outputs PWM –> drives TB6612 –> drives the motor to rotate. […]
The springboot project implements the verification code function (realized by the SMS anti-brush mechanism)
Why write this article In the project, there is a function of registering and sending text messages with the user’s mobile phone number, and a text message prevention mechanism is required. The main verification logic is as follows Graphic verification code verification IP verification, the same IP is limited to send 20 messages per day […]
[html local tool] html+JS implements a super-looking drawing board/graffiti board, with brushes, rectangles, circles, lines, texts, erasers, and undo, restore, and save functions
Foreword Hello everyone, this is Fu Hua. Today we will use pure html + js to implement a drawing board. It needs the following functions: brush tool free brush rectangle round straight line text input Brush and Eraser Resize Thickness Adjust brush color Eraser save as picture revoke Redo (anti-undo) If the above functions are […]
DC brush drive board current and voltage acquisition
DC brush drive board current and voltage acquisition Current acquisition involves the use of a current loop. #include “./adc/bsp_adc.h” #include “.\motor_control\bsp_motor_control.h” #include “./led/bsp_led.h” #include “./usart/bsp_debug_usart.h” __IO uint16_t ADC_ConvertedValue; DMA_HandleTypeDef DMA_Init_Handle; ADC_HandleTypeDef ADC_Handle; static uint16_t adc_buff[ADC_NUM_MAX]; // voltage acquisition buffer static uint16_t vbus_adc_mean = 0; // The average value of the power supply voltage ACD sampling […]
Google Pixel3 flashing guide – wire brushing
Google Pixel3 flashing guide – line flashing + MAC system operation 1. Flashing preparation work 1.1 Download flashing package 1.2 Unlock BL (BootLoader) 2. Original system flashing 2.1 Method 1: Brush the factory image with a wire 2.2 Method 2: Use **Android Flash Tools** to flash with one key (this method is relatively simple and […]
2. RocketMQ 2 master 2 slave asynchronous brushing cluster construction
1. Server planning First prepare three virtual machines CentOS7 192.168.65.111 worker1 192.168.65.112 worker2 192.168.65.113 worker3 Modify the hosts files of the three machines vim /etc/hosts Make sure each machine can ping the other two machines It means that there is no problem with our hosts configuration 2. Cluster planning machine name nemaeserver node deployment broker […]