Full code: <!DOCTYPE html> <html lang=”en”> <head> <meta charset=”UTF-8″> <title>Title</title> <style type=”text/css”> #box1 table{ border: 0px; border-collapse: collapse; cursor: pointer; background-color: gray; } #box1 th { border: 0px; border-collapse: collapse; cursor: pointer; } #box1 td{ border: 1px solid #000; border-collapse: collapse; cursor: pointer; text-align: center; font-size: 4; } #box1{ border: 0px; } .wall{ background-color: black; […]
Tag: points
JS Series (4) – this points to related
This is a keyword in JavaScript, but it is a relatively special keyword. Unlike keywords such as function, var, for, and if, you can clearly understand how it is used. this will bind an object in the execution context, but under what conditions is it bound? Different objects will be bound under different execution conditions, […]
1111 Online Map (30 points)
Title translation: It is to find the shortest path from one point to another point. However, due to many restrictions, it has to be calculated twice, so it is very complicated to write. Question solution ideas: You can use dijkstra or dfs. If you use the latter, the last test point may time out. Code: […]
Application of C++ Depth First (DFS) Algorithm: Maximum Points Obtained by Collecting All Gold Coins
Involving knowledge points Deep optimization (DFS) memoization Title There is an undirected tree consisting of n nodes at node 0, with node numbers from 0 to n – 1. You are given a two-dimensional integer array edges of length n – 1, where edges[i] = [ai, bi] means that there is an edge between nodes […]
[C++] Polymorphism ⑤ (Virtual destructor | Virtual destructor syntax | Virtual destructor meaning | When the parent class pointer points to the child class object, the parent class and the child class use virtual virtual destructor | Code example)
Article directory 1. Virtual destructor 1. The constructor cannot be a virtual function 2. The destructor can be a virtual function 3. Virtual destructor syntax 4. The meaning of virtual destructor 2. Code example – virtual destructor 1. Code example – Failure to use a virtual destructor results in the subclass destructor being unable to […]
One Demo handles the front-end and back-end multi-part uploading of large files, resumed uploading at breakpoints, and instantaneous uploading.
1Foreword File uploading is very common in project development. Most projects will involve the uploading of pictures, audios, videos, and files. Usually a simple Form can upload small files, but when encountering large files, such as more than 1GB, or When the user’s network is relatively slow, simple file upload is not applicable. The user […]
C# | Chaikin algorithm – Calculate the coordinate points of the smooth curve corresponding to the polyline
Chaikin algorithm – Calculate the coordinate points of the smooth curve corresponding to the polyline This article will introduce an algorithm for calculating the coordinate points of a smooth curve corresponding to a polyline. This algorithm uses the Chaikin curve smoothing method to adjust the smoothness and accuracy of the curve by controlling the tension […]
Data set of target points using yolov5 target detection (based on bamboo sticks)
Preface: In order to complete a certain job, I recently learned artificial intelligence by myself. I saw a program that automatically detects the number of photos taken with a mobile phone. I thought it was quite good, so I started researching it myself. I would like to share my experience summary and insights here. (Because […]
Java implements file uploading in parts and resumes uploading at breakpoints
Tips: The following is the text of this article, the following cases are for reference Regarding the first problem, if the file is too large and is disconnected halfway through the upload, restarting the upload will be very time-consuming, and you don’t know which part has been uploaded since the last disconnection. Therefore, we should […]
Interception points and scenario applications in the spring bean life cycle
Overview There are multiple customizable extension points in the process of creating a bean to perform custom operations during the bean life cycle. The following are examples of customizable points and scenarios throughout the bean life cycle. BeanDefinitionRegistryPostProcessor Bean definition registration post-processor allows you to modify or register bean definitions before the Spring container is […]