<!DOCTYPE html>
<html>
<head>
<meta http-equiv = "content-type" content = "text/html" charset = "utf-8"/>
<title> 五角星 </title>
<script>
window.onload=function(){
var canvas=document.getElementById('canvas');
var cx=canvas.getContext("2d");
cx.fillStyle='rgba(255,0,0,1)';
cx.strokeStyle='black';
cx.moveTo(10,240);
cx.lineTo(300,240);
cx.lineTo(60,70);
cx.lineTo(155,350);
cx.lineTo(245,70);
cx.lineTo(10,240);
cx.fill();
cx.stroke();
}
</script>
</head>
<body>
<canvas id="canvas" width="400px" height="400px" style="background-color: rgb(241, 231, 241);"></canvas>
</body>
</html>
效果图如下：
