Canvas动态案例

<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		<canvas id="draw" width="220" height="320" style="background-color: skyblue"></canvas>
	</body>
</html>
<script type="text/javascript">
	var draw=document.getElementById('draw');
	var cvs=draw.getContext('2d');
	var img=new Image;
	img.src='walkingdead.png';//添加图片地址
	img.onload=function(){//图片上有10张小图横着排列
		var width=this.width/10;
		var height=this.height;
		var i=0;
		window.setInterval(function(){
			cvs.clearRect(0,0,draw.width,draw.height);//清除上一个图片
		cvs.drawImage(img,i*width,0,width,height,0,0,width,height);
		if(i==9){
			i=0
		}else{i++;}
		},200);
	}
</script>