int* getArray(int n) {
    int i, j;
    int* a = (int*)malloc(n * sizeof(int)); //申请内存空间，大小为n个int长度。
    printf("请输入一维数组:");
    for ( i = 0; i < n; i++)
        scanf_s("%d", &a[i]);
    return a;
二维数组方法：
int** calTwoArray() {
    int i, j;
    int** b;
    b = (int**)malloc(2 * sizeof(int*)); //先申请M个指针型字节的空间
    for ( i = 0; i < 2; i++)
        b[i] = (int*)malloc(3 * sizeof(int)); //然后依次按一维申请
    //int a[2][3];
    printf("请输二维数组:");
    for ( i = 0; i < 2; i++)
        for ( j = 0; j <3; j++)
            scanf_s("%d", &b[i][j]);
    return b;
主main方法:
int main()
    int i, j;
    //一维数组打印
    int* a = getArray(5);
    for (i = 0; i < 5; i++)
        printf("%d\n", a[i]);
    //二维数组打印
    int** b = calTwoArray();
    for (i = 0; i < 2; i++)
        for (j = 0; j < 3; j++)
            printf("%d\n", b[i][j]);
    return 0;