funtc115b.dat

这是一个包含多个语言的指令集

#include <time.h>
#include <stdio.h>
#include <dos.h>
#include <conio.h>
int main(void)
{
    time_t first, second;
    clrscr();
    first = time(NULL);
    delay(2000);
    second = time(NULL);
    printf("The difference is: %f seconds
",difftime(second,first));
    getch();
    return 0;
}