Microsoft Office Word 文档

1、#include <iostream.h>#include <windows.h>#include <stdlib.h>#include <conio.h>#include <time.h> /使用当前时间做种子;enum dirup,down,left,right; /枚举类型enum dir;/围墙;class Fencepublic:void InitFence();void OutputF();public:char game2020;f; /定义对象;/画框框;void Fence:InitFence()for(int i=

2、0; i<20; i+)for(int j=0; j<20; j+)if(i=0|i=19|j=0|j=19)gameij= '*'else gameij= ' '/显示框框;void Fence:OutputF()for(int i=0; i<20; i+)for(int j=0; j<20; j+)cout<<gameij<<' 'cout<<endl;/蛇结点;class SnakeNodeprivate:int x,y;SnakeNode *prior,*next;public:

3、void add_head(int x,int y);int get_x();int get_y();void delete_tail();*head=NULL, *tail =NULL;/插入头结点;void SnakeNode:add_head(int x,int y)SnakeNode *q=new SnakeNode;q->x =x; q->y =y;q->next =head;q->prior =NULL;if(head) head->prior =q;head =q;if(!tail) tail =head;f.gamexy= '*'

4、/f对象可以在定义Fence类时定义; 且Fence类在SnakeNode类前定义;int SnakeNode:get_x()return x;int SnakeNode:get_y()return y;/删除尾结点;void SnakeNode:delete_tail()SnakeNode *p =tail;f.gametail->get_x()tail->get_y()= ' '/把尾结点的坐标表示的'*'置为空格;if(tail=head)tail= head= NULL;elsetail= tail->prior;tail->ne

5、xt= NULL;delete p;/move移动;class movepublic:dir point; /枚举变量point: 控制方向;int food_x;int food_y;public:void moving();void change_point(char); /改变方向;void get_food();void move:moving()int a,b;a= head->get_x(); /取得头结点横坐标b= head->get_y(); /头结点纵坐标switch(point)case up: -a; break;case down: +a; break;ca

6、se left: -b; break;case right: +b; break;if(a=19|b=19|a=0|b=0)/判断是否撞墙;cout<<"game over!"<<endl;exit(0);if(a=food_x && b=food_y)/吃food;head->add_head(a,b);get_food();elsehead->add_head(a,b); /插入头结点;head->delete_tail(); /删除尾结点;void move:change_point(char keydown)

7、switch(keydown)case 'w': point= up; break;case 's': point= down; break;case 'a': point= left; break;case 'd': point= right; break;void move:get_food()srand(unsigned int) time(NULL); /做种子(程序运行时间); food_x= rand()%18+1; food_y= rand()%18+1;f.gamefood_xfood_y= '*'

8、/main();int main()cout<<"Using 'w,s,a,d'to control direction!nnn"/画框框和小蛇;move m;f.InitFence();head->add_head(4,3);head->add_head(4,4);head->add_head(4,5);m.get_food();f.OutputF();while (true)char keydown= getch(); /getch()返回键盘上读取的字符;包含头文件<conio.h>m.change_point(keydown);while(!kbhit() /判断有没有按键落下;system("cls"); /清屏函数;m.moving();f.OutputF();Sleep(200);return 0;进程请求序列请求序列 柱面号 磁头号扇区号 115 8 9 2 20 6 3 2 20 9 6 4 40 10 5 5 15 8 4 6 6 3 10 7 8 7 9 8 15