两个文件的合并，提供原理，看了就懂 详细请看文件-The merger of the two documents provide principles, read on to understand

Windows系统下的免费开源的文件比较/合并工具，使用它可以非常方便地比较多个文档内容甚至是文件夹与文件夹之间的文件差异。-Free open source file system under Windows diff/merge tool with which you can very easily compare the contents of multiple documents and even file folders and folders difference between.