C 指针

#include void printptr(int *i){ printf("&i of printfptr = %#X/n",&i); printf("i of printfptr = %#X/n",i); printf("*i of printfptr = %d/n",*i); printf("i+1 of printfptr = %#X/n",i+1); printf("*(i + 1) of printfptr = %d/n",*(i+1)); } void printptr2(int *i,int j){ printf("&i of printfptr2 = %#X/n",&i); printf("i of printfptr2 = %#X/n",i); printf("*i of printfptr2 = %d/n",*i); printf("i+1 of printfptr2 = %#X/n",i+1); printf("*(i + 1) of printfptr2 = %d/n",*(i+1)); } void printptr3(int *i){ printf("&i of printfptr3 = %#X/n",&i); printf("i of printfptr3 = %#X/n",i); printf("*i of printfptr3 = %d/n",*i); printf("i+1 of printfptr3 = %#X/n",i+1); printf("*(i + 1) of printfptr3 = %d/n",*(i+1)); } void printptr4(int *i,int j){ printf("&i of printfptr4 = %#X/n",&i); printf("i of printfptr4 = %#X/n",i); printf("*i of printfptr4 = %d/n",*i); printf("i+1 of printfptr4 = %#X/n",i+1); printf("*(i + 1) of printfptr4 = %d/n",*(i+1)); } void printptr5(int **i){ printf("&i of printfptr5 = %#X/n",&i); printf("i of printfptr5 = %#X/n",i); printf("*i of printfptr5 = %d/n",*i); printf("i+1 of printfptr5 = %#X/n",i+1); printf("*(i + 1) of printfptr5 = %d/n",*(i+1)); printf("**i of printfptr5 = %d/n",**i); printf("*(*i+1) of printfptr5 = %d/n",*(*i+1)); printf("**(i+1) of printfptr5 = %d/n",**(i+1)); } void printptr6(int **i){ printf("&i of printfptr6 = %#X/n",&i); printf("i of printfptr6 = %#X/n",i); printf("*i of printfptr6 = %d/n",*i); printf("i+1 of printfptr6 = %#X/n",i+1); printf("*(i + 1) of printfptr6 = %d/n",*(i+1)); printf("**i of printfptr6 = %d/n",**i); printf("*(*i+1) of printfptr6 = %d/n",*(*i+1)); printf("**(i+1) of printfptr6 = %d/n",**(i+1)); printf("i[0][1] of printfptr6 = %d/n",i[0][1]); } int main(void) { int zippo[6][8] = { {11,12,13,14,15,16,17,18}, {21,22,23,24,25,26,27,28}, {31,32,33,34,35,36,37,38}, {41,42,43,44,45,46,47,48}, {51,52,53,54,55,56,57,58}, {61,62,63,64,65,66,67,68} }; printf("sizeof(int) = %d/n",sizeof(int)); printf("sizeof(zippo) = %d/n",sizeof(zippo)); printf("sizeof(&zippo) = %d/n",sizeof(&zippo)); printf("sizeof(*zippo) = %d/n",sizeof(*zippo)); printf("sizeof(zippo[0]) = %d/n",sizeof(zippo[0])); printf("sizeof(&zippo[0]) = %d/n",sizeof(&(zippo[0]))); printf("sizeof(*(zippo[0])) = %d/n",sizeof(*(zippo[0]))); printf("sizeof(zippo[0][0]) = %d/n",sizeof(zippo[0][0])); printf("sizeof(&zippo[0][0])= %d/n",sizeof(&(zippo[0][0]))); printf("zippo = %d/n",zippo); printf("&zippo = %d/n",&zippo); printf("*zippo = %d/n",*zippo); printf("zippo + 1 = %d/n",zippo + 1); printf("&zippo + 1 = %d/n",&zippo + 1); printf("*zippo + 1 = %d/n",*zippo + 1); printf("zippo[0] = %d/n",zippo[0]); printf("&zippo[0] = %d/n",&zippo[0]); printf("*(zippo[0]) = %d/n",*(zippo[0])); printf("zippo[0] + 1 = %d/n",zippo[0] + 1); printf("&zippo[0] + 1 = %d/n",&zippo[0] + 1); printf("*(zippo[0]) + 1 = %d/n",*(zippo[0]) + 1); printf("zippo[0][0] = %d/n",zippo[0][0]); printf("&zippo[0][0] = %d/n",&(zippo[0][0])); /* printptr(zippo); printptr2(zippo,2); printptr3(zippo); printptr4(zippo,2); printptr5(zippo); printptr6(zippo[0]); */ getch(); }