XML创建、读写操作示例程序，希望对大家有参考和学习的价值-XML to create, read and write operation of the sample programs, in the hope that we have a reference and learning the value of

XML文件的一系列操作，如文件的读写，修改等等功能-A series of operations in the XML file, such as file read and write, modify, and more