C++ vector容器删除操作

1.vector::pop_back()

删除vector的最后一个元素,vector的大小减一,删了的元素被销毁。

2.vector::erase()

iterator erase (iterator position);
iterator erase (iterator first, iterator last);//这个删除的范围是左闭右开

//C++11要求形参是const迭代器
iterator erase (const_iterator position);
iterator erase (const_iterator first, const_iterator last);//这个删除的范围是左闭右开

// example
//
erasing from vector #include <iostream> #include <vector> int main () { std::vector<int> myvector; // set some values (from 1 to 10) for (int i=1; i<=10; i++) myvector.push_back(i); // erase the 6th element myvector.erase (myvector.begin()+5); // erase the first 3 elements: myvector.erase (myvector.begin(),myvector.begin()+3); std::cout << "myvector contains:"; for (unsigned i=0; i<myvector.size(); ++i) std::cout << ' ' << myvector[i]; std::cout << ' '; return 0; }


原文地址:https://www.cnblogs.com/zywscq/p/5180566.html