//如果数组作为函数参数，数组形参退化为指针 //void print_array(int a[1], int n) //void print_array(int a[], int n)
//如果数组作为函数参数，数组形参退化为指针 //void print_array(int a[1], int n) //void print_array(int a[], int n) void print_array(int *a, int n) { // a, 当做指针用，指针类型，32位，长度4个字节
n = sizeof(a) / sizeof(a[0]); //元素个数 printf("print_array: n = %d\n", n);
int i = 0; for (i = 0; i < n; i++) { printf("%d ", a[i]); } printf("\n"); }
void sort_array(int a[10], int n) { int i, j, tmp;
//选择法排序 for (i = 0; i < n - 1; i++) { for (j = i + 1; j < n; j++) { if (a[i] > a[j]) //升序 { tmp = a[i]; a[i] = a[j]; a[j] = tmp; } } } }
int main(void) { int a[] = { 10, 7, 1, 9, 4, 6, 7, 3, 2, 0 }; int n; int i = 0; int j = 0; int tmp = 0;
n = sizeof(a) / sizeof(a[0]); //元素个数 printf("n = %d\n", n);
printf("排序前：\n"); print_array(a, n);
sort_array(a, n);
printf("排序后：\n"); print_array(a, n);
printf("\n"); system("pause"); return 0; }
