chap04 多线程下载
.................\MTdownload
.................\..........\DLFrame.java
.................\..........\DownLoad.java
.................\..........\MTdownload
.................\..........\..........\DLFrame$1.class
.................\..........\..........\DLFrame.class
.................\..........\..........\DownFile.class
.................\..........\..........\DownFilePart.class
.................\..........\..........\DownFileSplitter.class
.................\..........\..........\DownLoad.class
.................\readme.txt