xyz,abcvec4.back() ="back";//front,xyz,backstd::vector<int>vec5(5,6);//666666vec5.assign(3,4);//444 以3个4替换vec5原来的所有元素vec5.assign(v1.begin() +1, v1.end());//234 用v1第二个元素到最后一个元素替换vec5原来的所有元素vec5.assign({9,9,9});//999 用3个9替换ve...
#include<iostream>#include<vector>intmain(){// Create a vector containing integersstd::vector<int>v={7,5,16,8};// Add two more integers to vectorv.push_back(25);v.push_back(13);// Print out the vectorstd::cout<<"v = { ";for(intn:v){std::cout<<n<<", ";}std::cout<<...
std::cout<<"array="<<timeInterval.count() <<"ms\n"; // 复制vector std::vector<std::vector<int>>vec(10,std::vector<int>(10)),vec1(10,std::vector<int>(10)); beginTime=high_resolution_clock::now(); for(unsignedlonglongi=0;i<N; ++i) { //vec.assign(vec1.begin(),vec1.en...
*/vector&operator=( vector&& other );//C++11 起, C++17 前vector&operator=( vector&& other )noexcept();//C++17 起, C++20 前constexprvector&operator=( vector&& other )noexcept();//C++20 起/*3. 以 initializer_list ilist 所标识者替换内容。*/vector&operator=( std::initializer_list<T> ...
vector<int>leftArray(rightArray); 1. 2. 3. 利用swap()函数(交换两个vector) leftArray和rightArray会各自先清空原有的值,然后再互相交换值 交换前 交换后 4.利用assign()函数(清空并深复制) rightArray会先清空,然后再把leftArray复制到rightArray ...
I have a C-style array, and I want to assign it to a QVector. If I were using std::vector, I would have used assign(): int arr[] = { 1, 2, 3, 4, 5 }; std::vector<int> v; v.assign(arr, arr + sizeof(arr)/sizeof(int)); But for QVector I couldn't find a sim...
6.1 std::vector::operator[] 6.2 std::vector::at 6.3 std::vector::front 6.4 std::vector::back 6.5 std::vector::data (C++11) Modifiers 内容修改 7.1 std::vector::assign 7.2 std::vector::push_back 7.3 std::vector::pop_back 7.4 std::vector::insert ...
std::array std::vector std::vector<T,Allocator>::push_back std::vector<T,Allocator>::assign std::vector<T,Allocator>::get_allocator std::vector<T,Allocator>::operator[] std::vector<T,Allocator>::front std::vector<T,Allocator>::at std::vector<T,Allocator>::pop_back std::vector<T,...
下列代码用 assign 添加数个字符到 std::vector<char>: 运行此代码 #include <vector> #include <iostream> int main() { std::vector<char> characters; characters.assign(5, 'a'); for (char c : characters) { std::cout << c << ' '; } characters.assign({'\n', 'C', '+', '+', ...
在大概四年前，刚刚上大学的时候也和题主有一样的想法。我自己第一个造的轮子就是用std:: vector写...