C#实现的Diff工具，能够比较两个文本文件的差异，并计算文本相似度。-A diff tool implemented in C#,which can get differences between two text files, and

In computing, diff is a file comparison utility that outputs the differences between two files. It is typically used to show the changes between a file and a former version of the same file. Diff displays the changes made per line for text files.-In