用C语言生成一个3*4的数组,求每列的平均值答:以下是使用C语言生成3×4数组并求每列平均值的示例代码:```c include <stdio.h> int main(){ int arr[3][4] = {{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 10, 11, 12}}; // 生成3x4数组 for (int j = 0; j < 4; j++) // 循环遍历每列 { int sum = 0;for (int...
求数组:a[6]={1,2,3,4,5,6}所有元素的平均值,用C语言做答:include <stdio.h>int main(){ int i, a[6] = {1, 2, 3, 4, 5, 6}, sum; double avg; sum = 0; for (i = 0; i < 6; ++i){ sum += a[i]; } avg = sum/(double)6; printf ("%g\n", avg); return 0;} ...