runoob_07_vector

/*
 * @Author: by777
 * @Date: 2025-03-21 17:31:14
 * @LastEditors: by777
 * @LastEditTime: 2025-03-21 17:33:23
 * @FilePath: /cxx_stl/runoob_07.cpp
 * @Description: https://www.runoob.com/cplusplus/cpp-libs-vector.html
 * 
 * Copyright (c) 2025 by by777, All Rights Reserved. 
 */
#include <iostream>
#include <vector>
int main(int argc, const char** argv) {
    std::vector<int> vec;
    vec.push_back(10);
    vec.push_back(20);
    vec.push_back(30);

    std::cout << "Vector size: " << vec.size() << std::endl;
    std::cout << "Vector capacity: " << vec.capacity() << std::endl;

    // 删除最后一个元素
    vec.pop_back();
    for(const auto& value: vec){
        std::cout<<value<<" ";
    }
    std::cout<<std::endl;
    std::cout << "After pop_back, size: " << vec.size() << std::endl;
    return 0;
}