JFreeChart 9.20文件需要java对东部的网站做的状态。

代码说明：

JFreeChart 9.20的文档 需要用JAVA在网页上做统计图的东东，可惜虽是FREE的，但它的文档要收费，这是我好不容易在网上找到的9.2的文档，比这里以前那个文档的版本更新,并且以前那个版本在新版本里很多类都有变化，必须用这个文档才有用-JfreeChart 9.20 documentation needs JAVA done on the website of the Eastern statistics, but although FREE, but it charges to the document, which is on the Internet I finally found the 9.2 files, documents here that the previous version updates, and before that in the new version versions of many of these categories has changed, we must use only in this document