程序代码：

#include<stdio.h>
#include<stdlib.h>
#include<ctype.h>

int main()
{
    int day_num=1;
    float **p=malloc(day_num*sizeof(float*));
    char con;
   

    while(1)
    {
        p[day_num]=malloc(6*sizeof(float));
        setbuf(stdin,NULL);
        for(int i=0;i<6;i++)
            scanf("%f",(p[day_num]+i));
        printf("continue?(y or n)");
        setbuf(stdin,NULL);
        scanf("%c",&con);
        con=tolower(con);
        if(con=='n')
            break;
        else if(con=='y')
        {
            day_num++;
            p=realloc(p,day_num*sizeof(float*));
        }
        else
        {
            printf("input error\n");
            return 0;
        }
    }
   

    for(int i=0;i<day_num;i++)
        printf("%d:%f-%f,%f,%f,%f,%f,%f\n",i+1,(p[i][0]+p[i][1]+p[i][2]+p[i][3]+p[i][4]+p[i][5])/6,p[i][0],p[i][1],p[i][2],p[i][3],p[i][4],p[i][5]);
   

}

[此贴子已经被作者于2016-8-25 09:48编辑过]

程序代码：

#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>

int main( void )
{
    size_t day_num = 1;
    double (*p)[6] = malloc( day_num * sizeof(double[6]) );

    while(1)
    {
        for( size_t i=0; i!=6; ++i )
            scanf( "%lf", &p[day_num-1][i] );

        printf( "%s", "continue?(y or n) " );
        char con;
        if( scanf(" %c",&con)==1 && (con=='Y'||con=='y') )
            p = realloc( p, ++day_num * sizeof(double[6]) );
        else
            break;
    }

    for( size_t i=0; i!=day_num; ++i )
    {
        printf( "%zu: %f - %f,%f,%f,%f,%f,%f\n"
            , i+1
            , (p[i][0]+p[i][1]+p[i][2]+p[i][3]+p[i][4]+p[i][5])/6
            , p[i][0], p[i][1], p[i][2], p[i][3], p[i][4], p[i][5] );
    }

    return 0;
}