视频里是第一条线的颜色更深，实际测试是第二条线的颜色更深，怎么回事？

来源：3-2 canvas画直线（2）

陈子长

2018-11-21 10:29:46

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<style>
    canvas {
        border: 1px solid red;
    }
</style>
<body>
    <canvas id="myCanvas">
        浏览器不支持
    </canvas>
    <script>
        var canvas = document.getElementById("myCanvas");
        var ctx = canvas.getContext("2d");
        ctx.moveTo(0, 0);
        ctx.lineTo(100, 100);
        ctx.stroke();
        ctx.moveTo(100, 0);
        ctx.lineTo(100, 200);
        ctx.stroke();
        
        
    </script>
</body>
</html>

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