Canvas实现圆形进度条并显示数字百分比
实现效果1.首先创建html代码1<canvas id="canvas" width="500" height="500" style="background:#000;"></canvas>2.创建canvas环境123456var canvas = document.getElementById('canvas'), //获取canvas元素 context
实现效果1.首先创建html代码1<canvas id="canvas" width="500" height="500" style="background:#000;"></canvas>2.创建canvas环境123456var canvas = document.getElementById('canvas'), //获取canvas元素 context