runoob_02_标准库

/*
 * @Author: by777
 * @Date: 2025-03-20 20:11:37
 * @LastEditors: by777
 * @LastEditTime: 2025-03-20 20:13:00
 * @FilePath: /cxx_stl/runoob_02.cpp
 * @Description: https://www.runoob.com/cplusplus/cppo-import-header-file.html
 * 
 * Copyright (c) 2025 by by777, All Rights Reserved. 
 */

// #include <iostream>
// #include <vector>
// #include <cmath>

import std; // c++23
int main(){
    std::cout<<"Hello c++23 modules\n"<<std::end;
    return 0;
}