题目：有一个已经排好序的数组。现输入一个数，要求按原来的规律将它插入数组中。

1. 程序分析：首先判断此数是否大于最后一个数，然后再考虑插入中间的数的情况，插入后

　　　　　 此元素之后的数，依次后移一个位置。

2.程序源代码：-Topic: have a already sorted array. Now the input a number, according to the law of the original requirements will it into an array.

1. The program analysis: the first judge whether a number more than the last number, then consider insert in the middle of the number, after insert

This element of the number after, back in a position.

2. The source code: