// CPP program to illustrate// Application ofpush_backand pop_back function#include<iostream>#include<vector>usingnamespacestd;intmain(){intcount =0;vector<int> myvector; myvector.push_back(1); myvector.push_back(2); myvector.push_back(3); myvector.push_back(4); myvector.push_back(5...
void pop_back(); 备注移除成员函数控制序列中的最后一个元素,该元素绑定非空。 使用由的元素向量缩写在后面。示例复制 // cliext_vector_pop_back.cpp // compile with: /clr #include <cliext/vector> int main() { cliext::vector<wchar_t> c1; c1.push_back(L'a'); c1.push_back(L'b'); ...
// vector_pop_back.cpp // compile with: /EHsc #include <vector> #include <iostream> int main( ) { using namespace std; vector <int> v1; v1.push_back( 1 ); cout << v1.back( ) << endl; v1.push_back( 2 ); cout << v1.back( ) << endl; v1.pop_back( ); cout <<...
// vector_pop_back.cpp // compile with: /EHsc #include <vector> #include <iostream> int main( ) { using namespace std; vector <int> v1; v1.push_back( 1 ); cout << v1.back( ) << endl; v1.push_back( 2 ); cout << v1.back( ) << endl; v1.pop_back( ); cout <<...
pathList.pop_back(); CORBA::release(obj); objects.push_back(info); } } 开发者ID:s-nakaoka,项目名称:choreonoid,代码行数:21,代码来源:CorbaUtil.cpp 示例5: get_group ▲点赞 1▼ gl_sframe grouped_sframe::get_group(std::vector<flexible_type> key) {if(!m_inited) { ...
在空容器上调用 pop_back 导致未定义行为。 指向最后元素的迭代器和引用失效。end() 迭代器也失效。 参数(无) 返回值(无) 复杂度常数。 异常不抛出。 示例运行此代码 #include <vector> #include <iostream> namespace stq { template<typename T> void println(auto, const T& xz) { std::cout << ...
* pop_back是删除最后一个 * */ void del() { vector<int> demo{1, 2, 3, 4, 5}; //清空 demo.clear();//{} if (demo.empty()) {//判断Vector为空则返回true demo.insert(demo.end(), {6, 7, 8, 9, 10, 11});//{ 6, 7, 8, 9, 10, 11 } ...
// Pushpop.cpp // compile with: /EHsc // Illustrates how to use the push and pop member // functions of the vector container. // // Functions: // // vector::push_back - Appends (inserts) an element to the end of a // vector, allocating memory for it if necessary. // // ve...
void pop_back(); Remarks The member function removes the last element of the controlled sequence, which must be non-empty. You use it to shorten the vector by one element at the back. Example Copy // cliext_vector_pop_back.cpp // compile with: /clr #include <cliext/vector> int ma...
当我们使用push_back() , insert() , emplace()等成员方法的时候,有可能会增加容量,但是我们使用 pop_back()、erase()、clear() 等方式的时候,并不会减少实际 的内存容量。只是可以删除容器里面的内容。 (2)vector 有一个机制是这样的,如果新加入一个元素,比如通过push_back(),但是size 大于了capacity,那么...