XML解析器在XML文件中载入一个满内存,它解析文件,它会产生一个树结构代表XML文件。当然,你也可以解析XML数据,你已经储存自己变成一个内存缓冲区中。此后,你可以很轻易地“探”树,让你的数据。你也可以使用“添加修改树”和“删除”功能和再生一个XML字符串从subtree格式化。-Here is how it works: The XML parser loads a full XML file in memory, it parses the file and it generates a tree structure representing the XML file. Of course, you can also parse XML data that you have already stored yourself into a memory buffer. Thereafter, you can easily "explore" the tree to get your data. You can also modify the tree using "add" and "delete" functions and regenerate a formatted XML string from a subtree. Memory management is totally transparent through the use of smart pointers (in other words, you will never have to do any new, delete, malloc or free)("Smart pointers" are a primitive version of the garbage collector in Java).