[C++知识库]C++复习

代码1 99乘法表：

# include<iostream>
# include<string>
# include<ctime>

using namespace std;

int main()
{

	for (int i=1; i < 10;i++)
	{
		for (int j = 1; j <= i;j++ )
		{
			cout <<i<<"*"<<j<<"="<<(i*j)<<"  ";
		}
		cout << endl;
	}
	
}

代码2 冒泡排序：

# include<iostream>
# include<string>
# include<ctime>

using namespace std;

int main()
{
	int arr[] = { 2,4,8,1,0,5,4,3,4,1 };
	int t;
	for (int i = 0; i < 9; i++)
	{
		for (int j = i; j < 10; j++)
		{
			if (arr[i] > arr[j])
			{
				t = arr[i];
				arr[i] = arr[j];
				arr[j] = t;
			}

		}

	}
	for (int k = 0; k < 10; k++)
		cout << arr[k] << "  ";
	cout << endl;
}