将图片的src设置为blank.gif,真正的图片放到data-src
<img src="blank.gif" class="lazy" data-src="/images/full-size.jpg" width="240" height="152">
将图片的src设置为blank.gif,真正的图片放到data-src
<img src="blank.gif" class="lazy" data-src="/images/full-size.jpg" width="240" height="152">