下面是我写的一段石头剪刀布的游戏，但是现在一运行就要我输入两次数字，我也不知道错在哪里，请大家帮我纠正一下吧。如果要程序不结束，继续多玩几局，然后显示出你几胜几拜，这又改怎么修改呢？小弟万分感谢
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

main()
{
    int Player , Computer;
    printf ( " Start the game already\n " );
    printf ( " Plese input a number\n 1 Scissors\n 2 Rock\n 3 Paper\n " );
    scanf ( " %d ", &Player);
    if ( Player >= 4 || Player <= 0 )
          printf ( " Input error!\nPlease input again!\n " );
    else
        srand ( time ( NULL ) );
    Computer = 1 + rand() % 3;
if ( Computer == Player ) printf ( "Ping Ju!\n" ); else
if ( ( Player - Computer ) == -1 ) printf ( "YOU WIN!\n" ); else
if ( Player == 1 && Computer == 3) printf ( "YOU WIN!\n" ); else
printf("YOU LOSE!\n");

}

[[it] 本帖最后由 hopepark 于 2008-9-12 20:59 编辑 [/it]]

空格太多了
%d两边没有空格就好了

谢谢楼上的朋友，但是为什么去掉空格就可以了？

输入小于等于0或大于等于4是也不行啊
还得在if后加错误处理语句吧

Player - Computer ) == -1？
应该是Player - Computer ) == 1才是吧
srand ( time ( NULL ) );？？？？这个是什么意思

回楼上的朋友，我那句的意思是如果输入的数满足>=4或者<=0就执行
printf ( " Input error!\nPlease input again!\n " );
上面那个确实有BUG，现在改进了一下
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

main()
{
    int Player , Computer;
    printf ( "Start the game already\n" );
    printf ( "Plese input a number\n 1 Scissors\n 2 Rock\n 3 Paper\n" );
    scanf ( "%d", &Player);
    if ( Player >= 4 || Player <= 0 )
          printf ( "Input error!\nPlease input again!\n" );
    else
    {  srand ( time ( NULL ) );
    Computer = 1 + rand() % 3;
if ( Computer == Player ) printf ( "Ping Ju!\n" );
else if ( ( Player - Computer ) == -1 ) printf ( "YOU WIN!\n" );
else if ( Player == 1 && Computer == 3) printf ( "YOU WIN!\n" );
else
printf ( "YOU LOSE!\n" );
    }
}

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

void main(void)
{
        int Player,Computer;
        printf("Start the game already\n" );
        do
        {
    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");
                else if ((Player-Computer)==1 )
                    printf ("YOU WIN!\n");
                    else if
                        (Player==1&&Computer==3) printf("YOU WIN!\n");
                        else
                            printf("YOU LOSE!\n");
        }while(Player!=4);
}

加了goto,图简单，按书上讲少用goto的话
用for 最好了

srand ( time ( NULL ) );是为了不让每次生成的随机数是同一数

谢谢了，学到了很多