电子书《标准建模语言UML教程》是作者将网络上收集的电子图书整理后做成PDF 格式，您若需要，也可到书店购买。-E-book, " Unified Modeling Language UML Tutorial"　is the authors on the network, after finishing the collection of electronic books made into PDF format, you, if necessary, are also available at bookstores.