1、

#include <stdio.h>
#include <time.h>

void put_data(void)
{
    FILE *fp;
    
    if((fp = fopen("time.txt", "r")) == NULL)
    {
        printf("\aThe program is ran for the first time.\n");
        printf("My mood at this moment is relative calm.\n");
    }
    else
    {
        int year, month, day, week, hour, min, sec;
        char mood[128];
        fscanf(fp,"%d%d%d%d%d%d%d%s", &year, &month, &day, &week, &hour, &min, &sec, mood);
        printf("The program ran for the last time was %d-%d-%d; week(%d); %d-%d-%d.\n", year, month, day, week, hour, min, sec);
        printf("I was %s at the time.\n", mood);
        fclose(fp);
    }
}

void get_data(void)
{
    FILE *fp;
    
    time_t current = time(NULL);
    struct tm *timer = localtime(&current);
    
    if((fp = fopen("time.txt", "w")) == NULL)
        printf("\aFile open failed.\n");
    else
    {
        char mood[128];
        fprintf(fp, "%d %d %d %d %d %d %d", timer -> tm_year + 1900, timer -> tm_mon + 1, timer -> tm_mday, timer -> tm_wday,
        timer -> tm_hour, timer -> tm_min, timer -> tm_sec);
        printf("Please input your mood at this moment.\n");
        printf("My mood: "); scanf("%s", mood);
        fprintf(fp, " %s", mood);
        fclose(fp);    
    }    
}

int main(void)
{
    put_data();
    get_data();
    
    return 0;
}

 

2、

#include <stdio.h>
#include <time.h>

char mood[128];

void put_data(void)
{
    FILE *fp;
    
    if((fp = fopen("time.txt", "r")) == NULL)
    {
        printf("\aThe program is running for the first time.\n");
        printf("Please input the mood at this moment: "); scanf("%s", mood);
    }
    else
    {
        int year, month, day, week, hour, min, sec;
        fscanf(fp, "%d%d%d%d%d%d%d%s", &year, &month, &day, &week, &hour, &min, &sec, mood);
        printf("The last time the program ran is: %d-%d-%d; week(%d); %d-%d-%d\n",year, month, day, week, hour, min, sec);
        printf("My mood at that moment is: %s.\n", mood);
        printf("Please input the mood at this moment: "); scanf("%s", mood);
        fclose(fp);
    }
}

void get_data(void)
{
    FILE *fp;
    
    time_t current = time(NULL);
    struct tm *timer = localtime(&current);
    
    if((fp = fopen("time.txt", "w")) == NULL)
        printf("\aFile open failed.\n");
    else
    {
        fprintf(fp, "%d %d %d %d %d %d %d %s", timer -> tm_year + 1900, timer -> tm_mon + 1, timer -> tm_mday, timer -> tm_wday,
        timer -> tm_hour, timer -> tm_min, timer -> tm_sec, mood);
        fclose(fp);
    } 
}

int main(void)
{
    put_data();
    get_data();
    
    return 0;
}