<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>绘制带阴影的图形</title>
<script>
function draw(id){
var c=document.getElementById('canvas');
if(c==null)
return false;
var cxt=c.getContext("2d");
cxt.shadowOffsetX=15;
cxt.shadowOffsetY=15;
cxt.shadowColor="aqua";
cxt.shadowBlur=15;
cxt.fillStyle="yellow";
cxt.fillRect(20,20,150,100);
}
</script>
</head>
<body οnlοad="draw('canvas')">
<canvas id="canvas" width="400" height="300" style="border:1px solid blue;"></canvas>
</body>
<html>
<head>
<meta charset="UTF-8">
<title>绘制带阴影的图形</title>
<script>
function draw(id){
var c=document.getElementById('canvas');
if(c==null)
return false;
var cxt=c.getContext("2d");
cxt.shadowOffsetX=15;
cxt.shadowOffsetY=15;
cxt.shadowColor="aqua";
cxt.shadowBlur=15;
cxt.fillStyle="yellow";
cxt.fillRect(20,20,150,100);
}
</script>
</head>
<body οnlοad="draw('canvas')">
<canvas id="canvas" width="400" height="300" style="border:1px solid blue;"></canvas>
</body>
</html>
