将数组A中的内容和数组B中的内容进行交换

//将数组A中的内容和数组B中的内容进行交换。（数组一样大）
//例如 arr[1] = { 1, 2, 3, 4, 5, 6, 7, 8 };``
int swap(int arr1[],int arr2[],int length)
{
int i = 0;
for (i = 0; i < length; i++)
{
int t = arr1[i];
arr1[i] = arr2[i];
arr2[i] = t;
}
}
int main()
{
int i = 0;
int arr1[8] = { 1, 2, 3, 4, 5, 6, 7, 8 };
int arr2[8] = { 2, 3, 4, 5, 6, 8, 9, 1 };
/也可以用sizeof(arr1) / sizeof(arr1[0])计算length /*/
swap(arr1, arr2, sizeof(arr1) / sizeof(arr1[0]));
for (i = 0; i < 8; i++)
{
printf("%d “, arr1[i]);
}
printf(”\n");
for (i = 0; i < 8; i++)
{
printf("%d ", arr2[i]);
}
system(“pause”);
return 0;
}