说明：  王爽《汇编语言》（第二版）作业答案，不是王爽老师本人写的，但程序思路和王爽老师书中讲的基本一致，很不错。
(Wang Shuang, " Assembly Language" (Second Edition) operating the answer, not the king of cool teachers, I write, but the program ideas and Wang Shuang, the book stresses the teacher' s basic line, very good.)