App下載
實(shí)例代碼( Tip: 登錄后體驗(yàn)更佳 )
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>W3Cschool教程(w3cschool.cn)</title>
</head>
<body>
<canvas id="myCanvas" width="300" height="150" style="border:1px solid #d3d3d3;">
您的浏览器不支持 HTML5 canvas 标签。
</canvas>
<script>
var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");
ctx.beginPath();     
ctx.moveTo(20,20);             //创建一个起点
ctx.lineTo(100,20);            // 创建一个水平线
ctx.arcTo(150,20,150,70,50);   // 创建一个弧
ctx.lineTo(150,120);           // 继续垂直线
ctx.stroke();                  //绘画
</script> 
</body>
</html>
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