编辑代码

#include<iostream>
using namespace std;
void Insert_Sort(int arr[], int length)
{
	if (arr == nullptr || length <= 0)
		return;
	int j;
	int temp;
	for (int i = 1; i < length; ++i)
	{
		temp = arr[i];
		for (j = i - 1; j >= 0; --j)
		{
			if (arr[j] <= temp)	
				break;
			arr[j + 1] = arr[j];
		}
		arr[j + 1] = temp;
		cout << "第" << i << "次交换：";//对于第几次输出的输出
		for (int i = 0; i < length; ++i)
			cout << arr[i] << "  ";
		cout << endl;
	}
}
int main(int argc, char* argv[])
{
	const int length = 6;
	int numbers[length] = { 20,56,42,3,7,16 };

	Insert_Sort(numbers, length);
	cout << "排序完成：";
	for (int i = 0; i < length; i++)
		cout << numbers[i] << "  ";

	cout << endl;
	return 0;
}