将XML的用法作一个系统而详尽的阐述，适合入门使用。XML的来源、定义、发展前景、相关技术，每一个章节配合具体的不同例子进行阐述，清晰易懂。-Will make use of XML and detailed exposition of a system for entry to use. XML source, definition, development prospects, technologies, each chapter with specific examples to explain the different, clear and easy to understand.