Question

用C语言编写一个SIMON小游戏。

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

int main(void)
{

char another_game = 'Y';
int correct = false;
int counter = 0;
int sequence_length = 0;
time_t seed = 0;
int number = 0;
time_t now = 0;
int time_taken = 0;
printf("\nTo play simple Simon.");
printf("watch the screen for a sequence of digits.");
printf("\nWatch carefully,as the digits are only displayed"
"for a second!");
printf("\nThe computer will remove them, and then prompt you.");
printf("to enter the same sequence.");
printf("\n When you do, you must put spaces between the digits.\n");
printf("\nGood Luck!\nPress Enter to play!\n");
scanf("%c",&another_game);

do
{

correct = true; //在默认的情况下，显示正确的输入。
counter = 0 ; //初始化成功，并开始计数。
sequence_length = 2; //最初的游戏序列长度。
time_taken = clock(); //在游戏开始时记录当前时间。

while(correct)
{

sequence_length += counter ++% 3 == 0;
seed = time(NULL);
now = clock();
srand(time(&seed));
for(int i = 1; i <= sequence_length; i++);
printf("%d",rand()%10); //输出一个随机数字。
for(; clock() - now < 1*CLOCKS_PER_SEC;);
printf("\r");
for(int i = 1; i<= sequence_length; i++);
printf(" ");
if(counter == 1)
printf("\nNow you enter the sequence -don't forget the spaces\n");
else
printf("\r");
srand((unsigned int )seed);
for(int i = 1; i <= sequence_length; i++)
{

scanf("%d",&number);
if(number != rand()%10)
{

correct = false;
break;
}
}

printf("%s\n",correct?"Correct!":"Wrong!");
}
time_taken = (clock() - time_taken);
printf("\n\n Your scors is %d",--counter *100/time_taken); //输出比赛得分。
fflush(stdin);
printf("\n Do you wan to play again (y/n)?");
scanf("%c",&another_game);

}
while(toupper(another_game) == 'Y');
return 0;
}

问题出在编译运行后只显示一个数，而要求是输入两个数，另一个数，一直看不到显示。用了网上另一段代码又确定可以运行。。求解。

Answer 1

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

int main(void)
{

    char another_game = 'Y';
    int  correct = false;
    int counter = 0;
    int sequence_length = 0;
    time_t seed = 0;
    int number = 0;
    time_t now = 0;
    int time_taken = 0;
    printf("\nTo play simple Simon.");
    printf("watch the screen for a sequence of digits.");
    printf("\nWatch carefully,as the digits are only displayed"
           "for a second!");
    printf("\nThe computer will remove them, and then prompt you.");
    printf("to enter the same sequence.");
    printf("\n When you do, you must put spaces between the digits.\n");
    printf("\nGood Luck!\nPress Enter to play!\n");
    getch();    /*这里用getch就可以了，敲任意键不用回车*/

    do
    {
        correct = true;       //在默认的情况下，显示正确的输入。
        counter = 0   ;       //初始化成功，并开始计数。
        sequence_length = 2;  //最初的游戏序列长度。
        time_taken = clock(); //在游戏开始时记录当前时间。

        while(correct)
        {
            int i;
            sequence_length += counter++ % 3 == 0;
            seed = time(NULL);
            now =  clock();
            srand(time(&seed));
            for(i = 1; i <= sequence_length; i++)    /*for后面的分号去掉，否则下面的printf不是循环体*/
                printf("%d ",rand()%10);                      //输出一个随机数字。
            for(; clock() - now < 1*CLOCKS_PER_SEC;);
            printf("\r");
            for(i = 1; i<= sequence_length; i++)    /*这里问题同上*/
                printf("  ");    /*输出两个空格覆盖，要不然只能覆盖一半*/
            if(counter == 1)
                printf("\nNow you enter the sequence -don't forget the spaces\n");
            else
                printf("\r");
            srand((unsigned int )seed);
            for(i = 1; i <= sequence_length; i++)
            {
                scanf("%d",&number);
                if(number != rand()%10)
                {
                    correct = false;
                    break;
                }
            }

            printf("%s\n",correct?"Correct!":"Wrong!");
        }
        time_taken = (clock() - time_taken);
        printf("\n\n Your scors is %d",--counter *100/time_taken); //输出比赛得分。
        fflush(stdin);
        printf("\n Do you wan to play again (y/n)?");
        scanf("%c",&another_game);

    }
    while(toupper(another_game) == 'Y');
    return 0;
}

 看注释。