练习30 使用指针

//指针

#include"stdio.h"int main(){    int a, b;    int *pointer_1, *pointer_2;    a = 100; b = 10;    pointer_1 = &a;    pointer_2 = &b;    printf("%d,%d\n", a, b);    printf("%d,%d\n", *pointer_1, *pointer_2);    return 0;}