此博文记录了如何在网页中简单提取视频源地址的方法，起因是STS 课程中有一个Assessment是要观看影片去回答问题。Youtube没有资源，网页操作不方便，我想把他放到VLC中播放。 软件环境 Chrome浏览器 VLC打开网络链接（视频源地址 M3U8） Windows 10 操作步骤 使用Chrome浏览器在视频播放页面按F12进入开发模式(如上图所示)。 在控制台找到Network 在搜索框输入M3U8 复制Request URL中的值在VLC中打开即可 Reference： How do we download a blob url video [closed]https://stackoverflow.com/questions/42901942/how-do-we-download-a-blob-url-video 如何下载 blob 地址的视频资源https://www.cnblogs.com/mq0036/p/14953209.html

Create an new windwos forms project. Design Size. Add panel. design panel color,size,style. Add button. calculartor button and oper button. Coding button function. Declaring variables double fstNum,secNum; string oper; Identify button function btnCE private void btnCE_Click(object sender, EventArgs e) { textDisplay.Text = "0"; string f, s; f = Convert.ToString(fstNum); s = Convert.ToString(secNum); f = ""; s = ""; } backspace […]

Example explainedLine 1: using System means that we can use classes from the System namespace. Line 2: A blank line. C# ignores white space. However, multiple lines makes the code more readable. Line 3: namespace is used to organize your code, and it is a container for classes and other namespaces. Line 4: The curly braces {} marks the beginning […]