我的图片大小为940*300,但html5画布仅显示chrome中的部分图片.你能帮忙解决这个问题吗？
下面是代码
<!DOCTYPE html>
<html>
<head>
<style></style>
</head>
<body onload="draw();">
<p>Drag me</p>
<canvas id="paint_area"></canvas>
<script>
function draw() {
var ctx = document.getElementById('paint_area').getContext('2d');
//ctx.fillStyle = '#cc3300';
var img_buffer = document.createElement('img');
img_buffer.src = 'http://www.jobcons.in/homebanner.jpg';
var imgWidth = img_buffer.width;
var imgHeight = img_buffer.height;
ctx.width = imgWidth;
ctx.height = imgHeight;
ctx.drawImage(img_buffer,0,0,imgWidth,imgHeight);
}
</script>
</body>
</html>