作者的課外作業，模擬封包(packet)標頭，將之轉成二進制，再顯示二進制的相加結果，再做一的補數。

（並附上html檔，不會java的，直接開啟html即可執行）

-The author s extra-curricular work, simulated packet (packet) header, will be converted into binary, and then show the sum of binary results, do one of Complement. (With the html files, java will not directly open the html can be executed)