#include<ctime>#include<iostream>intmain(){std::time_t result=std::time(nullptr);std::cout<<std::asctime(std::localtime(&result))<<result<<" seconds since the Epoch\n";} Possible output: Wed Sep2110:27:5220111316615272seconds since the Epoch ...
std::time(nullptr)获取当前时间,并返回一个std::time_t类型的值。 std::localtime(¤tTime)将std::time_t转换为本地时间,返回一个指向std::tm结构的指针。 char buffer[100]分配了一个足够大的字符数组来存储格式化后的时间字符串。 const char* format = "%Y-%m-%d %H:%M:%S"指定了转换的字...
#include <iostream> #include <iomanip> #include <ctime> int main() { std::time_t t = std::time(nullptr); std::tm tm = *std::localtime(&t); std::cout.imbue(std::locale("ru_RU.utf8")); std::cout << "ru_RU: " << std::put_time(&tm, "%c %Z") << '\n'; std:...
#include <ctime> #include <iostream> int main() { std::time_t result = std::time(nullptr); std::cout << std::asctime(std::localtime(&result)) << result << " 自纪元起的秒数\n"; } 可能的输出: Wed Sep 21 10:27:52 2011 1316615272 自纪元起的秒数 参阅 timespec_get (C++17)...
#include <iostream> #include <iomanip> #include <ctime> int main() { std::time_t t = std::time(nullptr); std::tm tm = *std::localtime(&t); std::cout.imbue(std::locale("ru_RU.utf8")); std::cout << "ru_RU: " << std::put_time(&tm, "%c %Z") << '\n'; std:...
#include <iostream> #include <iomanip> #include <ctime> #include <stdlib.h> // 定义 putenv 于 POSIX int main() { std::time_t t = std::time(nullptr); std::cout << "UTC: " << std::put_time(std::gmtime(&t), "%c %Z") << '\n'; std::cout << "local: " << std::...
#include <codecvt>#include <ctime>#include <iomanip>#include <iostream>intmain(){std::time_tt=std::time(nullptr);std::wbuffer_convert<std::codecvt_utf8<wchar_t>>conv(std::cout.rdbuf());std::wostreamout(&conv);out.imbue(std::locale("ja_JP.utf8"));// this I/O manipulator std:...
#include <codecvt> #include <ctime> #include <iomanip> #include <iostream> int main() { std::time_t t = std::time(nullptr); std::wbuffer_convert<std::codecvt_utf8<wchar_t>> conv(std::cout.rdbuf()); std::wostream out(&conv); out.imbue(std::locale(out.getloc(), new std::...
首先通过find命令找到t-softfp（注意是config目录下的t-softfp）： find . -name "t-softfp" ...
{ std::time_t start = std::time(nullptr); volatile double d = 1.0; // 一些耗时操作 for (int p = 0; p < 10000; ++p) for (int q = 0; q < 100000; ++q) d = d + p * d * q + d; std::cout << "Wall time passed: " << std::difftime(std::time(nullptr), start)...