C++ boost : Get time with milliseconds

Question

目前我通过以下方式获取日期和时间:

 std::string isoString = boost::posix_time::to_iso_string(boost::posix_time::second_clock::universal_time());
 std::string date = isoString.substr(0,8);
 std::string time = isoString.substr(9,16); 

问题:缺少毫秒数，我需要此信息。如何获取毫秒级的时间？

Answer 1

您可以使用 boost::posix_time::microsec_clock :

 std::string isoString = boost::posix_time::to_iso_string(boost::posix_time::microsec_clock::universal_time());
 std::string date = isoString.substr(0,8);
 std::string time = isoString.substr(9,20);