C语言打印时间精确到毫秒

源码

Windows Qt下面验证

#include <stdio.h>
#include <sys/time.h>
#include <time.h>
#include <stdarg.h>
#include <windows.h>

int getCurrentTime()
{
    struct timeval tv;
    gettimeofday(&tv, NULL);
    struct tm *timeinfo;
    timeinfo = localtime(&tv.tv_sec);

    long milliseconds = tv.tv_usec / 1000; // 微秒转毫秒

    printf(" %d-%02d-%02d %02d:%02d:%02d.%03ld ",
        timeinfo->tm_year + 1900, timeinfo->tm_mon + 1, timeinfo->tm_mday,
        timeinfo->tm_hour, timeinfo->tm_min, timeinfo->tm_sec,
        milliseconds);

    return 0;
}

void printf_time(char *format, ...)
{
    va_list args;

    va_start(args, format);
    getCurrentTime();
    vprintf(format, args);
    va_end(args);
}

int main()
{
    while(1)
    {
        printf_time("aa:%d bb:%d\n", 33, 44);
        Sleep(1000);
    }
    return 0;
}