C4996系统找不到指定的文件

#include "Time.h"

void Time::timerStart()
{
    tBegin = clock();
}

double Time::timerStop()
{
    tEnd = clock();
    double elapsed_secs = double(tEnd - tBegin) / CLOCKS_PER_SEC;
    return elapsed_secs;
}

string Time::getDate(char delimiter)
{
    time_t t = time(0);   //now
    struct tm *now = localtime(&t);

    ostringstream ss; //use iss or oss and NOT ss (bulkier)
    ss << now->tm_mday << delimiter << (now->tm_mon + 1)
        << delimiter << (now->tm_year + 1900);

    return ss.str();
}

string Time::getTime(char delimiter)
{
    time_t t = time(0);
    struct tm *now = localtime(&t);

    ostringstream ss;
    ss << now->tm_hour << delimiter << now->tm_min << delimiter << now->tm_sec;

    return ss.str();
}
#include "Time.h"

void Time::timerStart()
{