HTML canvas ImageData height 属性 HTML canvas 参考手册 实例 输出 ImageData 对象的高度： alert('Height of imgData is: ' + imgData.height); 尝试一下 » 浏览器支持 Internet Explorer 9、Firefox、Opera、Chrome 和 Safari 支持 ImageData hei.....
This tutorial describes how to use the <canvas> element to draw 2D graphics, starting with the basics. The examples provided should give you some clear ideas about what you can do with canvas, and will provide code snippets that may get you started in building your own content....
