在C语言中，可以通过malloc函数或者calloc函数来创建动态数组。
使用malloc函数创建动态数组：#include <stdio.h>#include <stdlib.h>int main() { int *arr; int size; printf("Enter the size of the array: "); scanf("%d", &size); arr = (int *)malloc(size * sizeof(int)); if (arr == NULL) { printf("Memory allocation failed!\n"); return 0; } printf("Enter the elements of the array:\n"); for (int i = 0; i < size; i++) { scanf("%d", &arr[i]); } printf("The elements of the array are:\n"); for (int i = 0; i < size; i++) { printf("%d ", arr[i]); } printf("\n"); free(arr); return 0;}#include <stdio.h>#include <stdlib.h>int main() { int *arr; int size; printf("Enter the size of the array: "); scanf("%d", &size); arr = (int *)calloc(size, sizeof(int)); if (arr == NULL) { printf("Memory allocation failed!\n"); return 0; } printf("Enter the elements of the array:\n"); for (int i = 0; i < size; i++) { scanf("%d", &arr[i]); } printf("The elements of the array are:\n"); for (int i = 0; i < size; i++) { printf("%d ", arr[i]); } printf("\n"); free(arr); return 0;}无论是使用malloc还是calloc函数创建动态数组，都需要注意释放内存的操作，可以使用free函数释放动态数组占用的内存空间。
