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canvas绘制箭头并填充

2023-04-20编程技术139721

效果图

html结构

    

<!DOCTYPE html>

<html>

<head>

<meta charset="utf-8">

<meta http-equiv="X-UA-Compatible" content="IE=edge">

<title>canvas7</title>

<link rel="stylesheet" href="">

</head>

<body>

<canvas id="canvas" style ="border:1px solid #aaa;diplay:block;margin:50px auto;">

当前浏览器不支持canvas,请更换浏览器后再试

</canvas>

</body>

</html>

js脚本

<script>

window.onload = function(){

var canvas = document.getElementById('canvas');

canvas.width = 800;

canvas.height = 800;

var context = canvas.getContext('2d');

context.beginPath();

context.moveTo(100,350);

context.lineTo(500,350);

context.lineTo(500,200);

context.lineTo(700,400);

context.lineTo(500,600);

context.lineTo(500,450);

context.lineTo(100,450);

context.closePath();

context.lineWidth = 10;

context.fillStyle = "yellow";

context.strokeStyle = "#058";

context.fill();

context.stroke();

}

</script>

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