cout << to_simple_string(d) << endl; return 0; } 这段代码给出了三个错误 /usr/include/boost/date_time/date_formatting.hpp:44: undefined reference to `boost::gregorian::greg_month::as_short_string() const’ /usr/include/boost/date_time/date_formatting.hpp:49: undefined reference to `...
The Boost.Date_Time library provides the followingptimetostd::stringconversions within theboost::posix_timenamespace: std::string to_simple_string(ptime)returns a string in the form ofYYYY-mmm-DD HH:MM:SS.fffffffffformat where mmm is the three character month name. std::string to_iso_str...
问在boost中将date对象转换为字符串EN你读过关于日期方面的documentation吗？该示例看起来应该适用于您的场...
to string The Boost.Date_Time library provides the following ptime to std::string conversions within the boost::posix_time namespace: std::string to_simple_string(ptime) returns a string in the form of YYYY-mmm-DD HH:MM:SS.fffffffff format where mmm is the three character month name....
hpp> using namespace std; using namespace boost; using namespace boost::gregorian; int main(int argc, char const *argv[]) { // 日期格式化输出 date date_a = from_string("2021-01-25"); cout << "转为英文格式: " << to_simple_string(date_a) << endl; cout << "转为纯数字格式:...
date to string cout << to_simple_string(p) << endl;//转化为YYYY-mmmm-DD HH:MM:SS.ffffff,其中mmmm为英文缩写cout << to_iso_string(p) << endl;//转化为YYYYMMDDTHHMMSS,ffffff格式的数字字符串cout << to_iso_extended_string(p) << endl;//转化为YYYY-MM-DDTHH:MM:SS,ffffff的数字字符...
类似date 可用 to***string 转换成为字符串; 也支持类似的 operator; 可以转换成为 tm 结构体; time_duration 对象根据不同的时钟精度第四个参数可以写成纳秒或者毫秒;同时也支持类似 hours、minutes、seconds 等辅助函数;这个对象对应的方法可以返回这个 time_duration 包括几个小时、分钟等,也可以用 total* 将这个...
4: std::cout << "today is: " << now.date() << std::endl; 1. 5: std::cout << "time is: " << now.time_of_day() << std::endl; 1. 6: 1. ptime转换为string 1: std::string now_str(to_simple_string(now));
7: date d5(max_date_time); 1. 8: date d6(min_date_time); 1. 9: date d7; //default constructor 1. >> 也可以通过string字符串获得: 1: using namespace boost::gregorian; 1. 2: date d(from_string("2002/1/25")); 1.
>> 也可以通过string字符串获得: 1: using namespace boost::gregorian; 2: date d(from_string("2002/1/25")); 3: date d1(from_string("2002-1-25")); 4: date d2(from_undelimited_string("20020125")); 5: >> 还可以从时钟获得: ...