长程序
C语言写的21点程序！
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#define NULL 0
int compare(char sum1,char sum2)
{
if(sum1>=sum2)
return 1;
else
return 0;
}
int breakal(int sum)
{
if(sum>21)
return 0;
else
return 1;
}
char change(int card)
{
char ch,n,m,x;
switch(card)
{
case 1: ch='A';
break;
case 10:
{
n=1+int(rand()/(RAND_MAX+1.0));
if(n==1)
ch='K';
else
{
m=1+int(rand()/(RAND_MAX+1.0));
if(m==1)
ch='Q';
else
{
x=1+int(rand()/(RAND_MAX+1.0));
if(x==1)
ch='J';
}
}
break;
}
} //以上switch语句用于将数字转换成字符
return ch;
}
void game()
{
int i,k,n;
char host_ch,player_ch,host_card[15],player_card[15];
int host_sum=0,player_sum=0;
srand(time(NULL));
for(i=0;i<2;i++)
{
int (10.0*rand()/(RAND_MAX+1.0));
player_card[i]=1+int (10.0*rand()/(RAND_MAX+1.0));
player_ch=change(player_card[i]);
if(player_card[i]>1 && player_card[i]<10) //输出玩家抽到的牌的点数
printf("您抽到的第%d张牌是%d\n",i+1,player_card[i]);
else if(player_card[i]==10)
printf("您要到的第%d张牌是%c\n",i+1,player_ch);
else
printf("您要到的第%d张牌是A\n",i+1);
if(player_ch=='A') //询问判断玩家的A的点值为1或11
{
printf(" 您有一张A，您想要A作1还是11？\n");
printf(" 1. 1\n" );
printf(" 2. 11\n");
if(scanf("%d",&n) && n==1)
player_card[i]=1;
else
player_card[i]=11;
}
host_card[i]=1+int (10.0*rand()/(RAND_MAX+1.0));
host_ch=change(host_card[i]);
if(host_ch=='A') //电脑自动判断庄家的A的点值为1或11
{
k=1+int(rand()/(RAND_MAX+1.0));
if(k==1)
host_card[i]=11;
else
host_card[i]=1;
}
player_sum+=player_card[i]; //分别对庄家和玩家的点数求和
host_sum+=host_card[i];
}
printf("您现在的总面值为%d\n",player_sum);//输出玩家的总面值
for(i=2;i<5;i++)
{
if(host_sum<18 && host_sum>0)//电脑自动判断庄家是否要牌
{
host_card[i]=1+int (10.0*rand()/(RAND_MAX+1.0));
host_ch=change(host_card[i]);
if(host_ch=='A') //电脑自动判断庄家的A的点值为1或11
{
k=1+int(rand()/(RAND_MAX+1.0));
if(k==1)
host_card[i]=11;
else
host_card[i]=1;
}
host_sum+=host_card[i];
}
printf("您还要继续要牌吗？\n");
printf(" 1.要\n");
printf(" 2.不要\n");
scanf("%d",&k);
if(k==1)
{
{
player_card[i]=1+int (10.0*rand()/(RAND_MAX+1.0));
player_ch=change(player_card[i]);
if(player_ch=='A') //询问判断玩家的A的点值为1或11
{
printf("您有一张A，您想要A作1还是11？\n");
printf(" 1. 1\n" );
printf(" 2. 11\n");
if(scanf("%d",&n) && n==1)
player_card[i]=1;
else
player_card[i]=11;
printf("您要到的第%d张牌是A\n",i+1);
}
else
printf("您要到的第%d张牌是%d\n",i+1,player_card[i]);
player_sum+=player_card[i];
if(i==4)
printf("您手中已有5张牌，一决胜负的时刻到啦！\n");
if(breakal(host_sum)==0)
{
if(breakal(player_sum)==0)
{
printf("庄家爆牌了，您也爆牌了！庄家的牌面值是%d,您的牌面值是%d\n",host_sum,player_sum);
printf("\nYou lose..\n");
break;
}
}
else
if(breakal(player_sum)==0)
{
printf("您爆牌了！您的牌面值是%d\n \nYou lose..\n",player_sum);
break;
}
}
if(breakal(host_sum)==0)
{
printf("庄家爆牌了！庄家的牌面值是%d\n",host_sum);
printf("\nCongratulations! YOu win!\n");
break;
}
}
else
{
printf("庄家的牌面值是%d,您的牌面值是%d\n",host_sum,player_sum);
if(compare(host_sum,player_sum)==1)
printf("\nYou lose..\n");
else
printf("\nCongratulations! You win!\n");
break;
}
}
}
int main()
{
kaishi:
int n;
printf(" 欢迎进入21点游戏！\n");
printf(" ************************************\n");
printf(" 1.开始游戏\n");
printf(" 2.退出游戏\n");
printf(" ************************************\n");
if(scanf("%d",&n)&&n==1)
game();
else if(n==2)
{
printf(" ******************************\n");
printf(" 游戏结束！祝您愉快！\n");
printf("\n\n");
printf(" 再见!\n");
printf(" ******************************\n");
return 0;
}
goto kaishi;
}