File list (Check if you may need any files):
渐变同心圆\ci\ci.jcp
..........\..\ci.jcu
..........\..\ci.jcw
..........\..\.lasses\ci.class
..........\..\.......\ci.htm
..........\..\.......\myThread.class
..........\..\.......\test.class
..........\..\src\ci.class
..........\..\...\ci.java
..........\..\src_ci.txt
..........\..\test2\classes\test2.htm
..........\..\.....\src\test2.java
..........\..\.....\src_test2.txt
..........\..\.....\test2.jcp
..........\..\.....\classes
..........\..\.....\src
..........\..\classes
..........\..\src
..........\..\test2
..........\ci
渐变同心圆