<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
<title> 页面名称 </title>
</head>
<body>
<canvas id="canvasId" width="400" height="350"></canvas>
<script type="text/javascript">
var canvas = document.getElementById("canvasId");
var ctx = canvas.getContext("2d");
var cfont="40px 黑体";
ctx.font=cfont;
ctx.fillText("文字",20,50);
</script>
</body>
</html>
