经典C语言100例==72

【程序72】
题目：创建一个链表。
1.程序分析：首先定义链表结构，给链表初始化，输出链表　　　　　　　　　　　
2.程序源代码：

// example72.cpp : Defines the entry point for the console application.

//

#include "stdafx.h"
#include <stdlib.h>
#include <stdio.h>
struct list
{
    int data;
    struct list *next;
};
typedef struct list node;
typedef node *link;
int _tmain(int argc, _TCHAR* argv[])
{
    //my tao bao addbr

    link ptr,head,tail;
    int num,i;
    tail = (link)malloc(sizeof(node));
    tail->next = NULL;
    ptr = tail;
    printf("\nplease input the list data==>\n");
    for(i = 0; i <= 4; i++) {
        printf("The %dth node data: ",(5-i));
        scanf("%d",&num);
        ptr->data=num;
        head = (link)malloc(sizeof(node));
        head->next = ptr;
        ptr = head;
    }
    ptr = ptr->next;
 
    i = 1;
    while(ptr!=NULL) {
        printf("The %dth node data is ==>%d\n", i, ptr->data);
        ptr = ptr->next;
        i++;
    }
    getchar();
    getchar();
    return 0;
}

VS2005 compile and excute result:
please input the list data==>
The 5th node data: 5
The 4th node data: 4
The 3th node data: 3
The 2th node data: 2
The 1th node data: 1
The 1th node data is ==>1
The 2th node data is ==>2
The 3th node data is ==>3
The 4th node data is ==>4
The 5th node data is ==>5