温习C语言(1)：指针与地址

最新推荐文章于 2025-09-04 16:45:21 发布

转载最新推荐文章于 2025-09-04 16:45:21 发布 · 64 阅读

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原文链接：http://www.cnblogs.com/codemo/archive/2012/11/01/Point_And_Addresss.html

文章标签：

#c/c++

本文详细解析了C语言中指针与地址的基本概念及其应用，通过实例展示了如何使用指针进行变量操作、地址引用和内存管理，旨在帮助初学者深入理解C语言中的指针机制。

#include<stdio.h>
#include<stddef.h>

int main(int argc,char **argv) 
{ 	
	char c;
	char *p = &c;
	printf("len of char is %d\n",sizeof *p);
	
	int x = 1, y = 2, z[10]={8,22,33};
	int *ip = &x;
	printf("x,y is %d,%d\n",x,y);
	
	y= *ip;
	printf("x,y is %d,%d\n",x,y);
	
	*ip = 0;
	printf("x,y is %d,%d\n",x,y);
	
	ip = z;
	x = *ip;
	printf("x,y is %d,%d\n",x,y);
	
	*ip = *ip + 10;
	y = *ip + 1;
	printf("x,y,*ip is %d,%d,%d\n",x,y,*ip); //8,19,18
	
	++*ip;
	x = *ip;
	printf("x,y,*ip is %d,%d,%d\n",x,y,*ip); //19,19,19
	
	(*ip)++;
	printf("x,y,*ip is %d,%d,%d\n",x,y,*ip); //19,19,20
	
	*ip++;
	printf("x,y,*ip is %d,%d,%d\n",x,y,*ip); //19,19,22	
	
	return 0;
}

转载于:https://www.cnblogs.com/codemo/archive/2012/11/01/Point_And_Addresss.html