1ãcanvasç»å¶ç©å½¢
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>canvasç»å¶ç©å½¢</title>
<script type="text/javascript" src="canvas2.js"></script>
<style type="text/css">
body {
margin: 0;
padding: 0;
}
</style>
</head>
<body onload="draw('canvas')">
<canvas id="canvas" width="400" height="300"></canvas>
</body>
</html>
js:
/**
* Created by winson on 2016/9/11.
*/
function draw(id) {
var canvas = document.getElementById(id);//ç¨getElementByIdè·åå°canvas对象
var context = canvas.getContext('2d');//åå¾ä¸ä¸æ
context.fillStyle = "green";//ç»å¶èæ¯çé¢è²
context.strokeStyle = "#fff";//ç»å¶è¾¹æ¡çé¢è²
context.lineWidth = 5; //设置ç»ç¬å®½åº¦
context.fillRect(0, 0, 400, 300);//ç»å¶
context.strokeRect(50, 50, 180, 120);
}