数组和指针

数组名同时也是该数组首元素的地址。

 

#define SIZE 4

short dates [SIZE];

    dates[0] = 1;

    dates[1] = 2;

    dates[2] = 3;

    dates[3] = 4;

    

    short *pti;

    

    double bills[SIZE];

    bills[0] = 1.1;

    bills[1] = 2.2;

    bills[2] = 3.3;

    bills[3] = 4.4;

    double *ptf;

    

    short index;

    

    pti = dates;

    ptf = bills;

    

    printf("%23s %10s\n","short","double");

    for (index = 0; index<SIZE; index++)

    {

        printf("pointers +%d: value = %d ,address = %10p value = %.1f,address = %10p\n",index,*(pti+index),pti+index,*(ptf+index),ptf+index);

    }

    return0;

                         short                                                        double

pointers +0: value = 1 ,address = 0x7fff5fbff830 value = 1.1,address = 0x7fff5fbff800

pointers +1: value = 2 ,address = 0x7fff5fbff832 value = 2.2,address = 0x7fff5fbff808

pointers +2: value = 3 ,address = 0x7fff5fbff834 value = 3.3,address = 0x7fff5fbff810

pointers +3: value = 4 ,address = 0x7fff5fbff836 value = 4.4,address = 0x7fff5fbff818

 

*(dates+2) == dates[2]          // 值相同

dates +2 == &dates[2]　　　　// 地址相同

 

＊优先级  大于 ＋