获取c++中每行代码的执行时间

#include <chrono>

auto start = std::chrono::high_resolution_clock::now();
// 代码块
auto end = std::chrono::high_resolution_clock::now();

auto duration = std::chrono::duration_cast<std::chrono::milliseconds>(end - start);
std::cout << "Execution time: " << duration.count() << " milliseconds" << std::endl;

#include <iostream>
#include <chrono>

int main() {
    auto start = std::chrono::high_resolution_clock::now();

    // 代码块
    for (int i = 0; i < 1000000; i++) {
        // 执行一些操作
    }

    auto end = std::chrono::high_resolution_clock::now();
    auto duration = std::chrono::duration_cast<std::chrono::milliseconds>(end - start);
    std::cout << "Execution time: " << duration.count() << " milliseconds" << std::endl;

    return 0;
}