[数据结构与算法]随机生成10个整数存入一个循环双向链表中，然后按序输出这些整数和逆序输出这些整数。（C语言）

#include<stdio.h>
#include<stdlib.h>
struct DNode{
    int Data;
    struct DNode *Next;
    struct DNode *Previous;
};
struct DNode *create(){
    struct DNode *head;
    head=(struct DNode *)malloc(sizeof(struct DNode));
    head->Next=head;
    head->Previous=head;
}
void insert(struct DNode *head,int num){
    struct DNode *p,*q;
    p=head;
    while(p->Next!=head){
        p=p->Next;
    }
    q=(struct DNode *)malloc(sizeof(struct DNode));
    q->Data=num;
    q->Next=p->Next;
    p->Next=q;
    q->Previous=p;
    q->Next->Previous=q;
}
void show(struct DNode *head){
    struct DNode *p;
    p=head->Next;
    while(p!=head){
        printf("%d\t",p->Data);
        p=p->Next;
    }
    printf("\n");
}
void reShow(struct DNode *head){
    struct DNode *p;
    p=head->Previous;
    while(p!=head){
        printf("%d\t",p->Data);
        p=p->Previous;
    }
    printf("\n");
}
int main(){
    struct DNode *head;
    head=create();
    srand(time(NULL));
    for(int i=0;i<10;i++){
        insert(head,rand());
    }
    printf("正序输出:\n");
    show(head);
    printf("逆序输出:\n");
    reShow(head);
}