vector容器删除元素erase用法

删除数组{0，1，...，9}里面的元素8，代码如下：

	vectora;
	cout << "before erase:";
	for (int i = 0; i < 10; i++)
	{
		a.push_back(i);
		cout << a[i];
	}
	cout << endl;
	for (auto it = a.begin(); it != a.end();)
	{
		if (*it == 8)
		{
			it = a.erase(it);
		}
		else
		{
			++it; 
		}
	}
	cout << "after erase:";
	for (int i = 0; i < 9; i++)
	{
		cout << a[i];
	}
	cout << endl;

输出结果：