flash源码，是一个放大镜效果的制作过程，利用的是图片的淡入、淡出效果-flash source is a magnifier effect, the production process is the use of pictures of black, fade out effect

一个可以使用的放大镜，用户手动拖动，虽则拖动将下方的图放大。-can use a magnifier, user manual drive, even though the drive to the bottom of the map to enlarge.