一、將時(shí)間戳轉(zhuǎn)成字符串

//strfmt

void metis_strftime(time_t t, char *pcTime) {struct tm *tm_t;tm_t = localtime(&t);strftime(pcTime,128,"%F %T",tm_t); }

二、將字符串轉(zhuǎn)成時(shí)間戳

long metis_strptime(char *str_time){struct tm stm; strptime(str_time, "%Y-%m-%d %H:%M:%S",&stm);long t = mktime(&stm);return t;}

三、獲取秒級(jí)，毫秒級(jí)和納秒級(jí)的當(dāng)前時(shí)間

#include<stdio.h> #include<sys/time.h>```csharp int main() {struct timeval time_now = {0};long time_sec = 0;//秒long time_mil = 0;//1毫秒 = 1秒/1000 long time_mic = 0;//1微秒 = 1毫秒/1000gettimeofday(&time_now,NULL);time_sec = time_now.tv_sec;time_mil = time_sec * 1000 + time_now.tv_usec/1000;time_mic = time_now.tv_sec*1000*1000 + time_now.tv_usec;printf("second %ld\n",time_sec);printf("millisecond %ld\n",time_mil);printf("microsecond %ld\n",time_mic);return 0; }

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