linux获取系统日期时间格式

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#include <string.h> #include <stdlib.h> #include <stdio.h> #include <time.h> #include <ctype.h> #include <sys/stat.h> void getdate(char *datestr,char *format) {     time_t nnowtime = time(NULL);     struct tm* ptmTemp = localtime(&nnowtime);     if (ptmTemp == NULL ||         !strftime(datestr, 256, format, ptmTemp))         datestr[0] = '\0'; } #include <iostream> using namespace std; int main() {     char szdate[64]={0};     char sztime[64]={0};     getdate(szdate, "%Y%m%d");     getdate(sztime, "%H%M%S");       std::cout<<szdate<<std::endl;     std::cout<<sztime<<std::endl;     return 0; }