.4已有一个已经排好序的数组，今输入一个数，要求按照原来排序的规律将它插入数组中。

本程序可以对both由小到大的排列数组和由大到小的数组进行操作-.4 Has an already sorted array, this type a number, sorted according to the original law required it into the array. The program can arrange for both small to large arrays and array operation descending