要設置筆觸顏色HTML5 Canvas的文本，我們可以使用的strokeStyle畫布的背景和strokeText（）方法。
- context.strokeStyle=[value];
- context.strokeText("Hello World!", x, y);
先看下個例子：
<!DOCTYPE HTML>
<html>
<head>
<title>html5_canvas_text_stroke</title>
<style>
body {margin: 0px;padding: 0px;}
#myCanvas {border: 1px solid #9C9898; margin:0 auto;margin-top:200px; margin-left:100px;}
</style>
<script>
window.onload = function(){
var canvas = document.getElementById("myCanvas");
var context = canvas.getContext("2d");
var x = 80;
var y = 110;
context.font = "60pt Calibri";
context.lineWidth = 3;
context.strokeStyle = "blue"; // stroke color
context.strokeText("Hello World!", x, y);
};
</script>
</head>
<body>
<canvas id="myCanvas" width="578" height="200">
</canvas>
</body>
</html>