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');

    ctx.beginPath();
    ctx.arc(75,75,50,0,Math.PI*2,true); // 绘制
    ctx.moveTo(110,75);
    ctx.arc(75,75,35,0,Math.PI,false);   // 口(顺时针)
    ctx.moveTo(65,65);
    ctx.arc(60,65,5,0,Math.PI*2,true);  // 左眼
    ctx.moveTo(95,65);
    ctx.arc(90,65,5,0,Math.PI*2,true);  // 右眼
    ctx.stroke();
 }
}