Lesson1/demo6.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Canvas教程－填充</title>
</head>
<body>
<canvas id="canvas" style="border: 1px solid #555;display: block;margin:50px auto;"></canvas>
<script>
    window.onload = function () {
        var canvas = document.getElementById("canvas");
        canvas.width = 500;
        canvas.height = 400;
        var context = canvas.getContext("2d");

        context.beginPath();
        context.moveTo(100, 100);
        context.lineTo(300, 300);
        context.lineTo(100, 300);
        context.closePath();
        //进行线条粗细设置
        context.lineWidth = 5;
        //进行填充样式设置
        context.fillStyle = "#058";
        context.fill();
    }
</script>
</body>
</html>