- algorithm is designed as real boundary fill alg., but for visibility, it is drawing not only single pixels, - but 10x10px squares. By clicking on the canvas, you specify starting point where algorithm is started... - That磗 why white spaces are

qrcode其实是通过使用jQuery实现图形渲染，画图，支持canvas（HTML5）和table两种方式.-qr code is actually realized by using jQuery graphics rendering, drawing support canvas (HTML5) and a table in two ways.