指针基础应用的测试

好久不写,指针都忘了,写个简单的小程序测试一下。

--------------------------

功能:输入3个数,然后输出,最后三个变量都归零。

--------------------------

程序运行和编译的环境:

ubuntu 12.04.2LTS ; Linux  3.5.0-36-generic ; gcc version 4.6.3; Vi IMproved 7.3 

//Pointer tests

#include <stdio.h>
#include <stdlib.h>

typedef struct{
	int num1;
	int num2;
}Test;

void main(){
	//Define the right type of pointer!!
	int i,j,test,*p;
	Test *q;
	Test tmp;

	printf ("Input the test number:");
	scanf ("%d",&test);
	p=&test;
	printf ("The number is %d\n",*p);

	printf ("Input the tmp.num1:");
	scanf ("%d",&tmp.num1);
	printf ("Input the tmp.num2:");
	scanf ("%d",&tmp.num2);

	printf ("Here's the tmp.num1.num2:");
	q=&tmp;
	printf ("%d %d\n",q->num1,q->num2);

	printf ("Clean the data...");
	*p=0;
	q->num1=0;
	q->num2=0;
	printf ("\n%d %d %d\n",test,q->num1,q->num2);
	printf ("END!\n");
	getchar();
}

你可能感兴趣的:(基础,指针)