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canvas路径canvas路径指存以贝塞尔曲线为理论基础的区域绘制方式，绘制时产生的线条称为路径。具体百度创建canvas之前首先得创建一个html canvas标签<canvas id="canvas" width="400" height="500"></canvas>1.画布环境<script type="text/javascript"> // 首先获取canvas对象 v

canvas基础创建canvas之前首先得创建一个html canvas标签<canvas id="canvas" width="400" height="500"></canvas>1.画布环境<script type="text/javascript"> // 首先获取canvas对象 var canvas = document.getElementById('canvas');