如果要加入显示电脑出了什么和你自己出了什么该怎么修改呢？如果再加上你现在几胜几败又该如何修改呢？

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

int main(void)
{
        int Player,Computer,ping,win,lose;
        int single=0;
            ping=0;
            win=0;
            lose=0;
        goto start1;
  start: printf("please choose once again or end,once again input 1,end input 2.\n");
         printf("yes or no:%i",single);
         scanf("%i",&single);
         if(single==1)
            goto start1;
            else if(single==2)
                  goto end;
                  else
                     printf("\nError choose,please choose again!\n");
                         goto start;
  start1:  printf("Start the game already\n" );

  begin:    printf ( "Plese input a number\n 1Scissors\n 2Rock\n 3Paper\n 4Quit\n");
            scanf ( "%d", &Player);
            if (Player>=4||Player<=0)
            {
                printf ("Inputerror!\nPlease input again!\n " );
                goto begin;
            }


            srand (time(NULL));
            Computer=1+rand()%3;
            printf("%d\n",Computer);


            if(Computer==Player)
               printf ("Ping Ju!\n",ping++);
                else if((Player-Computer)==1)
                    printf ("YOU WIN!\n",win++);
                    else if
                        (Player==1&&Computer==3)
                        printf("YOU WIN!\n",win++);
                        else
                           printf("YOU LOSE!\n",lose++);
                       single=0;
                       goto start;
                            

  end:   printf("the total number of the game is :%i\n",ping+win+lose);
         printf("out of the game and good luck!\n");
         printf("this is your grade:\n");
         printf("ping: %i\nwin: %i\nlose: %i\n",ping,win,lose);
}

这是我改写的，能够统计游戏次数，也能够统计总次数，而且可以无限制的游戏。不过我改来改去始终不能用 y 来表示继续，用 n 来表示结束，我尝试着用字符变量来表示，可是不知道怎么回事，那个  printf("\nError choose,please choose again!\n");始终会被调用两次，代码如下：
#include<stdio.h>
#include<stdlib.h>
#include<time.h>

int main(void)
{
        int Player,Computer,ping,win,lose;
        char single='\0';
            ping=0;
            win=0;
            lose=0;
        goto start1;
  start: printf("please choose once again or end,once again input y,end input n.\n");
         printf("yes or no:%c",single);
         scanf("%c",&single);
         if(single=='y')
            goto start1;
            else if(single=='n')
                  goto end;
                  else if(single='\0')
                     goto start;
                     else
                       printf("\nError choose,please choose again!\n");
  clear:                 single='\0';
                         goto start;
  start1:  printf("Start the game already\n" );

  begin:    printf ( "Plese input a number\n 1Scissors\n 2Rock\n 3Paper\n 4Quit\n");
            scanf ( "%d", &Player);
            if (Player>=4||Player<=0)
            {
                printf ("Inputerror!\nPlease input again!\n " );
                goto begin;
            }


            srand (time(NULL));
            Computer=1+rand()%3;
            printf("%d\n",Computer);


            if(Computer==Player)
               printf ("Ping Ju!\n",ping++);
                else if((Player-Computer)==1)
                    printf ("YOU WIN!\n",win++);
                    else if
                        (Player==1&&Computer==3)
                        printf("YOU WIN!\n",win++);
                        else
                           printf("YOU LOSE!\n",lose++);
                 goto clear;
                            

  end:   printf("the total number of the game is :%i\n",ping+win+lose);
         printf("out of the game and good luck!\n");
         printf("this is your grade:\n");
         printf("ping: %i\nwin: %i\nlose: %i\n",ping,win,lose);
}
我也是个新手，程序写得很臭（已被前辈骂过数次了），请各位大侠不吝赐教啦!o(∩_∩)o...

[[it] 本帖最后由 kscus 于 2008-9-14 13:18 编辑 [/it]]

那个其实你的程序里面已经有了，可能你没注意，就是 printf("%d\n",Computer)
如果想明确一点的话，可以写为 printf("Computer's key is:%d\n",Computer),然后在前面 scanf ( "%d", &Player);语句之后加上想要的printf 语句就行了。

[[it] 本帖最后由 kscus 于 2008-9-13 15:33 编辑 [/it]]

我确实这样写了，但是我的意思是电脑这样写出来Computer's key is:石头 或者剪刀什么的，而我写的这个也仅仅是1，2，3，

谢谢指教，我还是菜鸟蛋

这个也很简单，加几句if else   printf;语句就可以了，代码如下：
#include<stdio.h>
#include<stdlib.h>
#include<time.h>

int main(void)
{
        int Player,Computer,ping,win,lose;
        int single=0;
            ping=0;
            win=0;
            lose=0;
        goto start1;
  start: printf("please choose once again or end,once again input 1,end input 2.\n");
         printf("yes or no:%i",single);
         scanf("%i",&single);
         if(single==1)
            goto start1;
            else if(single==2)
                  goto end;
                  else
                     printf("\nError choose,please choose again!\n");
                         goto start;
  start1:  printf("Start the game already\n" );

  begin:    printf ( "Plese input a number\n 1Scissors\n 2Rock\n 3Paper\n");
            scanf ( "%d", &Player);
            if(Player==1)
            printf("player's key is： 剪刀\n");
            else if(Player==2)
            printf("player's key is:  石头\n");
            else if(Player==3)
            printf("player's key is:  布\n");
            
            if (Player>=4||Player<=0)
            {
                printf ("Inputerror!\nPlease input again!\n " );
                goto begin;
            }


            srand (time(NULL));
            Computer=1+rand()%3;
            if(Computer==1)
            printf("computer's key is： 剪刀\n");
            else if(Computer==2)
            printf("computer's key is:  石头\n");
            else if(Computer==3)
            printf("computer's key is:  布\n");


            if(Computer==Player)
               printf ("Ping Ju!\n",ping++);
                else if((Player-Computer)==1)
                    printf ("YOU WIN!\n",win++);
                    else if
                        (Player==1&&Computer==3)
                        printf("YOU WIN!\n",win++);
                        else
                           printf("YOU LOSE!\n",lose++);
                       single=0;
                       goto start;
                            

  end:   printf("the total number of the game is :%i\n",ping+win+lose);
         printf("out of the game and good luck!\n");
         printf("this is your grade:\n");
         printf("ping: %i\nwin: %i\nlose: %i\n",ping,win,lose);
}

不过我还没怎么接触过随机函数，所以那个srand (time(NULL));
                                      Computer=1+rand()%3;  是什么意思我还没看明白，嘿嘿，麻烦楼主给兄弟我解释一下！另外我觉得这个随机数的产生还不是很灵活，我反复做了几次试验发现电脑产生的随机数重复性很大，不知道楼主有没有什么好的解决办法，我在这里受教了……

LS：少用goto。

少用？呵呵，我只是觉得这个用起来挺方便的，就是不知道用多了有什么后果……

有一种代码，叫做“意大利面条式的代码”，满代码都是goto，导致代码像面条一样缠绕，极端难以维护，你是没体会过的，反正某些人代码出错了，直接往论坛一丢就走人，丝毫也不愿意自己Debug。

srand(time(null))是利用时间设置随机种子，只有一秒以后你运行一次这程序，生成的随机数就会不一样，如果不用这个很有可能一直生成的随机数都是同一个；Computer=1+rand()%3;是为了让生成的随机数+1.如果Computer= rand()%3 就是生成0，1，2这三个数，为了让选择时候1，2，3这样选择，所以加了一个1.这样Computer=1+rand()%3就可以生成1，2，3这三个数