ptr_demo.c

来自「文件名：c语言深入学习必备参考例子 很多经典的c例子：高级的宏定义」· C语言 代码 · 共 16 行

#include <stdio.h>

void main(void)
 {
   int counter = 10;
   int *iptr;          // Declare pointer value

   iptr = &counter;    // Assign the address
   printf("Addres in iptr %x Value at *iptr %d\n", iptr, *iptr); 
   
   *iptr = 25;         // Change the value in memory

   printf("Value of counter %d\n", counter);
 }