<![CDATA[
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>선 굵기 지정하기</title>
</head>
<body>
<canvas id="myCanvas" width="700" height="400"
style="border: 2px solid #cef"> </canvas>
<script>
const canvas = document.getElementById("myCanvas");
const ctx = canvas.getContext("2d");
for (let i = 1; i <= 25; i ++) {
ctx.beginPath();
ctx.moveTo(i * 25, 50);
ctx.lineTo(i * 25, 350);
ctx.strokeStyle = `rgb(${i * 10}, 0, 0)`;
ctx.lineWidth = i;
ctx.stroke();
}
</script>
</body>
</html>
]]>