Introduction - If you have any usage issues, please Google them yourself
Mr. into two binary integer file f1, f2. Then f1 and f2 are merged into a binary file according to the following rules. f3: f3, the data assume that for x, then x exists in f1 but not f2 in x exists at f2, but it does not exist in f1. F3, the data exist in the number of f1 or f2, but not present in the f1 and f2.