std::vector学习

https://www.cnblogs.com/judes/p/10736275.html

https://www.cnblogs.com/judes/p/10498959.html

https://www.cnblogs.com/judes/p/13753516.html

1、删除指定序号的内容

std::vector<int>::iterator it = vec.begin()+10;
auto it = vec.erase(it);
//cout<<*it;

会返回此迭代