而这次的系统主要是针对单个file控件的，便携版，使用更简单，还有更深入的分析。 兼容：ie6/7/8, firefox 3.5.5, opera 10.01, safari 4.0.3, chrome 3.0 -But this time the system is mainly directed against a single file controls, portable version, the use of more simple, there are more in-dep