学习C++笔记256

vs2017 上使用安全方法:

#include

#include

usingnamespace std;

#define TIMESIZE 26

int main(){

   // 时间

   time_t now = time(0);

   char dt[TIMESIZE];

   errno_t err;

   err = ctime_s(dt, TIMESIZE,&now);

   cout <<"local time: "<< dt << endl;

   cout <<"timestamp: "<< now << endl;

   struct tm ltm;

   localtime_s(<m,&now);

   cout <<"年: "<<1900+ ltm.tm_year << endl;

   cout <<"月: "<<1+ ltm.tm_mon << endl;

   cout <<"日: "<< ltm.tm_mday << endl;

   cout <<"时间: "<< ltm.tm_hour <<":";

   cout << ltm.tm_min <<":";

   cout << ltm.tm_sec << endl;

   return0;

}