在附加段中有个一已经排序的数组，数组中第一个元素存放数组的长度，在AX中有个无符号数，要求在数组中查找（AX），如果找到，则CF=0，在SI中存放该元素在数组中的偏移地址。本例使用折半查找的方法(In the appended segment, there is an array that has been sorted. The first element in the array holds the length of the array. There is an unsigned number in AX. It is required to find in the array (AX). If it is found, then CF=0 will store the offset address of the element in SI. In this case the use of binary search method)