#include <chrono> #include <ctime> #include <iomapip> #include <iostream> #include <sstream> std::string get_time_now() { std::chrono::time_point<std::chrono::high_resolution_clock> now = std::chrono::high_resolution_clock::now(); time_t raw_time = std::chrono::high_resolution_clock::to_time_t(now); struct tm tm_info = *localtime(&raw_time); std::chrono::seconds seconds = std::chrono::duration_cast<std::chrono::seconds>(now.time_since_epoch()); std::chrono::milliseconds mills = std::chrono::duration_cast<std::chrono::milliseconds>(now.time_since_epoch()); std::chrono::microseconds micros = std::chrono::duration_cast<std::chrono::microseconds>(now.time_since_epoch()); std::chrono::nanoseconds nanos = std::chrono::duration_cast<std::chrono::nanoseconds>(now.time_since_epoch()); std::stringstream ss; ss << std::put_time(&tm_info, "%Y%m%d%H%M%S") << std::setfill('0') << std::setw(3) << std::to_string(mills.count() - seconds.count() * 1000) << std::setfill('0') << std::setw(3) << std::to_string(micros.count() - mills.count() * 1000) << std::setw(3) << std::setfill('0') << std::to_string(nanos.count() - micros.count() * 1000); return ss.str(); }
int main(int args,char **argv)
{
int len=atoi(argv[1]);
for(int i=0;i<len;i++)
{
std::cout<<i+1<<","<<get_time_now()<<std::endl;
}
}