比较经典的JTDraw，很多地方都有这个代码，却编译通不过，因为不能用最新的BCGP库，这个代码经过我的修改，可以用最新的BCGP库。-Comparison of classic JTDraw, many places have this code, but compiler pass, however, can not be used because BCGP up-to-date database, the code changes and I can be up-to-date datab