#include <stdio.h>
 
#define COUNT_OF_PCHAR 3
 
int main(void) {
    char *ptrStore[COUNT_OF_PCHAR] = {0};
    char **ptr = &ptrStore[0];
    int n, m;
    char *temp;
    char *string3 = "YOU";
    char *string2 = "FOR";
    char *string1 = "BOOK";
 
    // before store any pointer to it
    printf("before:\n");
    printf("ptrStore[0] 位址:%p\n", ptrStore[0]);
    printf("ptrStore[1] 位址:%p\n", ptrStore[1]);
    printf("ptrStore[2] 位址:%p\n", ptrStore[2]);
    printf("\n");
 
    temp = string1;
    *ptr = temp;
    *(ptr + 1) = string2;
    *(ptr + 2) = string3;
 
    // after store pointer to it
    printf("after:\n");
    printf("ptrStore[0] 位址:%p\n", ptrStore[0]);
    printf("ptrStore[1] 位址:%p\n", ptrStore[1]);
    printf("ptrStore[2] 位址:%p\n", ptrStore[2]);
    printf("\n");
 
    printf("\"BOOK\" 位址:%p\n", string3);
    printf("\"FOR\" 位址:%p\n", string2);
    printf("\"YOU\" 位址:%p\n", string1);
    printf("\n");
 
    printf("string3 位址:%p\n", &string3);
    printf("string2 位址:%p\n", &string2);
    printf("string1 位址:%p\n", &string1);
    printf("\n");
 
    for (n = 0; n < COUNT_OF_PCHAR; n++) {
        printf("*(ptr+%d) 所存的位址 %p\n", n, *(ptr + n));
        printf("(ptr+%d) 本身的位址 %p\n", n, (ptr + n));
        printf("*(ptr+%d) 指向字串 %s\n", n, *(ptr + n));
        for (m = 0; *(*(ptr + n) + m) != '\0'; m++) {
            printf("*(*(ptr+%d)+%d) = %c \n", n, m, *(*(ptr + n) + m));
        }
 
    }
    return 0;
}
 

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