I want to merge file A and file B into a new file C, All of them are binary. How to do that? thanks a lot. -- 鹦鹉聪明绝顶、搞笑之极，是人类的好朋友。 直到有一天，我才发觉，我是鹦鹉。 我是翻墙的鹦鹉。