``html，，，，，，Snap Photo，，，，var video = document.getElementById('video');，var canvas = document.getElementById('canvas');，var context = canvas.getContext('2d');，var snap = document.getEle……
实现思路：使用HTML5的标签和MediaDevices API调用手机摄像头，通过canvas将视频帧绘制为图片。，，代码：，``html，，，，，HTML5调用手机摄像头拍照，，，，拍照，，，， const video = document.getElementB……
