Linux C语言

dt3tc

有个源代码，用途是在屏幕上显示一串数字几秒种，然后由用户凭记忆把它打出来
在windows下能用gcc（带-std=c99）编译成功并正常运行，在linux下也编译正常，但不能显示机器给出的数字

1. /* Program 4.12 Simple Simon */
   
2. #include <stdio.h>                     /* For input and output   */
   
3. #include <ctype.h>                     /* For toupper() function */
   
4. #include <stdbool.h>                   /* For bool, true, false  */
   
5. #include <stdlib.h>                    /* For rand() and srand() */
   
6. #include <time.h>                      /* For time() and clock() */
   
7. 
   
8. int main(void)
   
9. {
   
10.   /* Records if another game is to be played */
    
11.   char another_game = 'Y';
    
12. 
    
13.   /* true if correct sequence entered, false otherwise */
    
14.   int correct = false;
    
15. 
    
16.   /* Number of sequences entered successfully          */
    
17.   int counter = 0;
    
18. 
    
19.   int sequence_length = 0;     /* Number of digits in a sequence        */
    
20.   time_t seed = 0;             /* Seed value for random number sequence */
    
21.   int number = 0;              /* Stores an input digit                 */
    
22. 
    
23.   time_t now = 0;            /* Stores current time - seed for random values  */
    
24.   int time_taken = 0;        /* Time taken for game in seconds                */
    
25. 
    
26.   /* Describe how the game is played */
    
27.   printf("\nTo play Simple Simon, ");
    
28.   printf("watch the screen for a sequence of digits.");
    
29.   printf("\nWatch carefully, as the digits are only displayed"
    
30.                                                 " for a second! ");
    
31.   printf("\nThe computer will remove them, and then prompt you ");
    
32.   printf("to enter the same sequence.");
    
33.   printf("\nWhen you do, you must put spaces between the digits. \n");
    
34.   printf("\nGood Luck!\nPress Enter to play\n");
    
35.   scanf("%c", &another_game);
    
36. 
    
37.   /* One outer loop iteration is one game */
    
38.   do
    
39.   {
    
40.     correct = true;         /* By default indicates correct sequence entered */
    
41.     counter = 0;            /* Initialize count of number of successful tries*/
    
42.     sequence_length = 2;    /* Initial length of a digit sequence            */
    
43.     time_taken = clock();  /* Record current time at start of game       */
    
44. 
    
45.     /* Inner loop continues as long as sequences are entered correctly */
    
46.     while(correct)
    
47.     {
    
48.       /* On every third successful try, increase the sequence length */
    
49.       sequence_length += counter++%3 == 0;
    
50. 
    
51.       /* Set seed to be the number of seconds since Jan 1,1970  */
    
52.       seed = time(NULL);
    
53. 
    
54.       now = clock();                  /* record start time for sequence  */
    
55. 
    
56.       /* Generate a sequence of numbers and display the number */
    
57.       srand((unsigned int)seed);      /* Initialize the random sequence */
    
58.       for(int i = 1; i <= sequence_length; i++)
    
59.         printf("%d ", rand() % 10);    /* Output a random digit          */
    
60. 
    
61.       /* Wait one second */
    
62.       for( ;clock() - now < CLOCKS_PER_SEC; );
    
63. 
    
64.       /* Now overwrite the digit sequence */
    
65.       printf("\r");                   /* go to beginning of the line */
    
66.       for(int i = 1; i <= sequence_length; i++)
    
67.         printf("  ");                 /* Output two spaces */
    
68. 
    
69.       if(counter == 1)           /* Only output message for the first try */
    
70.         printf("\nNow you enter the sequence  - don't forget"
    
71.                                                " the spaces\n");
    
72.       else
    
73.         printf("\r");                /* Back to the beginning of the line */
    
74. 
    
75.       /* Check the input sequence of digits against the original */
    
76.       srand((unsigned int)seed);     /* Restart the random sequence    */
    
77.       for(int i = 1; i <= sequence_length; i++)
    
78.       {
    
79.         scanf("%d", &number);         /* Read an input number         */
    
80.         if(number != rand() % 10)     /* Compare against random digit */
    
81.         {
    
82.           correct = false;            /* Incorrect entry             */
    
83.           break;                      /* No need to check further... */
    
84.         }
    
85.       }
    
86.       printf("%s\n", correct? "Correct!" : "Wrong!");
    
87.     }
    
88. 
    
89.     /* Calculate total time to play the game in seconds)*/
    
90.     time_taken = (clock() - time_taken) / CLOCKS_PER_SEC;
    
91. 
    
92.     /* Output the game score */
    
93.     printf("\n\n Your score is %d", --counter * 100 / time_taken);
    
94. 
    
95.     /*fflush(stdin);*/
    
96.     getchar();
    
97. 
    
98.     /* Check if new game required*/
    
99.     printf("\nDo you want to play again (y/n)? ");
    
100.     scanf("%c", &another_game);
     
101. 
     
102.   }while(toupper(another_game) == 'Y');
     
103.   return 0;
     
104. }

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！@R键！

好长啊！

dt3tc

！@R键！ 发表于 2015-1-19 20:50
好长啊！

从第27到34行是一连串的printf();语句，所以出问题的几率不大。。ps:而且书上本来就是这么长

wingtree

这个，好抽象的问题

爱琴海里的星

顶顶~

wingtree

都是大神呀

桃花飞舞

zhao zhe shang bian yun xing le ,bu zuo biao shi .:call:

HB无影

真是每一行都注释了！好习惯:lol:

mhhnjuol

linux，没用过:sweat::sweat: