改程序包，包含以下五个C程序内容，对数组进行排序，求100之内的素数，数组的逆序输出，杨辉三角和计算一维数组中所有元素的平均值-Change the program package, contains the following five C program content, to sort the array, and 100 primes, reverse output array, mean value of all elements of the Yang Hui triangle and calculation in the one-dimensional array