3.　　利用折半查找算法在有序表中插入一个元素，并保持表的有序性。在ListInArray工程中添加新接口int ListInsert_Binary(LIST &L, DataType item)实现上述功能。-3. Use binary search algorithm to insert an element in the ordered table, and keep ordering table. Adding a new interface works in ListInArray int ListInsert_Binary (LIST &　L, DataType item) to achieve the above functions.