数组

 

 

#include <stdio.h>
int main(void)
{
    int n[10];
    int c=10;
    long sum=0L;
    float av=0.0f;
    int i;


    printf("shuru 10ge\n");
    
    for(i=0;i<c;i++)
    {
        printf("%2d>>>>",i+1);
        scanf("%d",&n[i]);
        sum+=n[i];
    }

    av=(float)sum/c;

    for (i=0;i<c;i++)
    {
        printf("\n Grade Number %d was %d",i+1,n[i]);
    }


    printf("\n平均值%f\n",av);
    system("pause");
    return 0;
}

 

 

#include <stdio.h>
int main(void)
{
    long a=1L;
    long b=2L;
    long c=3L;

    double d=4.0;
    double e=5.0;
    double f=6.0;

    printf("A variable of type long occupies %d bytes.",sizeof(long));
    printf("\nHere addresses");
    printf("\na>>>%p \nb>>>%p\nc>>>%p",&a,&b,&c);

    printf("\n\nA variable of type double occupies %d bytes.",sizeof(double));
    printf("\nHere addresses");
    printf("\nd>>>%p \ne>>>%p\nf>>>%p",&d,&e,&f);





    system("pause");
    return 0;

}

 

#include <stdio.h>
int main(void)
{
    int i;
    int data[5];
    for (i=0;i<5;i++);
    {
    data[i]=12*(i+1);
    printf("\n data[%d]")

    
    }




    system("pause");
    return 0;

}