本文是作者从别的网站和文章学习了解的知识,简单做了个笔记,想要学习更多的可以参考这里:[css进阶]伪元素的妙用--单标签之美,奇思妙想 (弧形切角矩形) 代码: width: 180px; height:180px; } .arc { background: radial-gradient(circle at top left, transparent 15px, yellowgreen 0) top left, radial-gradient(circle at top right, tra…
全角:指一个字符占用两个标准字符位置:半角:指一字符占用一个标准的字符位置. using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ExtensionMethodsDemo { static class Program { static void Main(string[] args) { string input = "深圳狐狼,你是好人!".To…
代码示例一: #include<opencv2/opencv.hpp> using namespace cv; int main(){ Mat src = imread(); imshow("原始图", src); //进行Harris角点检测找出角点 Mat cornerStrength; cornerHarris(src, cornerStrength, , , 0.01); //对灰度图进行阈值操作,得到二值图并显示 Mat harrisCorner; thresho…
红色为加四个角 黄色为扫描线自动下滑 /* * Copyright (C) 2008 ZXing authors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http:/…