通过指针变量访问整型变量

#include<stdio.h>int main(){int a=100;    int b=10;int *pointer_1;   //定义指向整型数据的指针变量int *pointer_2;pointer_1=&a;     //把整型变量的地址赋给指针变量pointer_2=&b;printf("a=%d\nb=%d\n",a,b);printf("*pointer_1=%d\n*pointer_2=%d\n",*pointer_1,*pointer_2);return 0;}