JSFiddle - React, Tailwind, and code Playground

by yacan8

HTML

<!-- Learn about this code on MDN: https://developer.mozilla.org/zh-CN/docs/Web/API/Canvas_API/Tutorial/Drawing_shapes -->

<html>
 <body onload="draw();">
   <canvas id="canvas" width="150" height="150"></canvas>
 </body>
</html>

JavaScript

function draw() {
 var canvas = document.getElementById('canvas');
 if (canvas.getContext){
 var ctx = canvas.getContext('2d');

 //三次贝塞尔曲线
 ctx.beginPath();
 ctx.moveTo(75,40);
 ctx.bezierCurveTo(75,37,70,25,50,25);
 ctx.bezierCurveTo(20,25,20,62.5,20,62.5);
 ctx.bezierCurveTo(20,80,40,102,75,120);
 ctx.bezierCurveTo(110,102,130,80,130,62.5);
 ctx.bezierCurveTo(130,62.5,130,25,100,25);
 ctx.bezierCurveTo(85,25,75,37,75,40);
 ctx.fill();
  }
}