编写一个计算机程序用来计算一个文件的16位效验和。最快速的方法是用一个32位的整数来存放这个和。记住要处理进位（例如，超过16位的那些位），把它们加到效验和中。-Write a computer program used to calculate a 16-bit file checksum. The fastest method is to use a 32-bit integer to store this and. Remember to handle binary (for exampl