迭代器测试

对于C++来说

迭代器的使用类似于指针的使用

但却有着更好的操作

下面代码为迭代器测试代码

仅供自己学习使用

代码如下

//迭代器测试
#include
#include
#include
using namespace std;
#if 0
int main()
{
	vector v;
	for (int i = 0; i < 10; i++)
	{
		v.push_back(i);
	}
	vector::iterator first = v.begin();
	vector::iterator second = v.begin() + 1;
	vector::iterator last = v.end() - 1;
	if (!v.empty())
	{
		while ((second) != (last))
		{
			cout << (*first) + (*second) << endl;
			first++;
			second++;
		}
	}
	cout << "-------------------------------------" << endl;
	system("pause");
	return 0;
}
#endif
#if 1
int main()
{
	vector v1;
	for (int i = 0; i < 9; i++)
	{
		v1.push_back(i);
	}
	vector::iterator first = v1.begin();
	vector::iterator last = v1.end();
	while (first != last && first < last)
	{
		cout << (*first) + (*(last-1)) << endl;
		first++;
		last--;
	}
	system("pause");
	return 0;
}
#endif