canvas

Posted on 2018-04-16 17:32 ZMQM 阅读(98) 评论(0) 收藏举报

<canvas id="mycanvas" width="200" height="100"></canvas>
<script type="text/javascript">
var c=document.getElementById('mycanvas');
var cxt=c.getContext('2d');
cxt.fillStyle="#ff0000";
cxt.fillRect(0,0,150,75)
</script>

fillRect (左上角的开始的点x，左上角开始的点的y，右下角的x，右下角的y)