本文实例展示了C语言循环结构与时间函数用法，对于C语言的学习来说是非常不错的参考借鉴材料。分享给大家供大家参考之用。具体如下：
完整实例代码如下：
?
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
/**********************************************
** 《Beginning C 4th Edition》 Notes codes
** Created by Goopand
** Compiler: gcc 4.7.0
***********************************************/
/* Simon games : memory ability test */
#include <stdio.h> /* for printf(),scanf() function */
#include <ctype.h> /* for tolower() function */
#include <stdbool.h> /* for bool type: true, false */
#include <time.h> /* for time() function */
#include <stdlib.h> /* for rand(),srand() function */
int main(void)
{
char nextGame = 'Y'; /* go ahead for another game */
bool correct = false; /* guess correctly */
int counter = 0; /* number of sequences guessed correctly */
int seq_len = 0; /* length of sequence */
int input_num = 0; /* stores an input digit */
time_t seed = 0; /* seed value for random number sequence */
//int i = 0; /* for loop variable */
clock_t start_clock = 0; /* record start clock time (not second) */
int time_taken = 0; /* Time used for game in seconds */
printf("Here is a simon game for training memory ability .\\n");
printf("\\nThe screen will show a number sequence for 1 second , ");
printf("then the sequence will disappear. You are suggested to "
"input the same sequence to pass the game.\\n");
printf("\\nNotice this: each digit is seperated by a space. \\n");
printf("\\nNow press Enter to play .. Good luck !\\n");
scanf("%c",&nextGame); //Waiting for user's input
do
{
correct = true ;
counter = 0 ; /* successful tries */
seq_len = 2 ; /* Initial length of a digit sequence */
time_taken = clock();
while(correct)
{
/* On each third successful try, increase the squence length */
seq_len += (counter++ % 3 == 0);
//if "==" expression is true,returns 1; else returns 0
/* time(NULL) returns number of seconds since 1970-01-01 */
seed = time(NULL);
/* Generate and display a sequence of random numbers */
srand((unsigned int)seed);
//initialize the seed for rand() function
for(int i=0; i<seq_len; i++)
printf("%d ",rand() % 10);
//Output a random digit and a space
/* Wait one second */
start_clock = clock() ;
//returns start clock time,clock() is a timer
for(;clock() - start_clock < CLOCKS_PER_SEC;) ;
//CLOCKS_PER_SEC is a const defined in time.h
/* Now overwrite the digit sequence */
printf("\\r");
//control char "\\r" : locator back to beginning of the line
for(int i=0; i<seq_len; i++)
printf(" ");
//two spaces to overwrite the sequence
printf("\\r");
/* Check wether the input sequence is correct */
srand((unsigned int)seed); //Restart the random sequence
for(int i=0; i<seq_len; i++)
{
scanf("%d",&input_num); //Read an input number
if(input_num != rand() % 10 )
{
correct = false ;
break;
}
}
printf("%s\\n",correct ? "Correct !" : "Wrong !");
}
/* Calculate total time to play the game in seconds */
time_taken=(clock() - time_taken) / CLOCKS_PER_SEC ;
/* Output the total game score */
printf("\\n\\nYour score is %d", --counter * 100 / time_taken);
fflush(stdin); //Empty the input buffer
printf("\\nDo you want to play again (y/n)? ");
scanf("%c",&nextGame);
} while(tolower(nextGame) == 'y');
return 0;
}
|
相关文章
猜你喜欢
- 个人网站搭建：如何挑选具有弹性扩展能力的服务器？ 2025-06-10
- 个人服务器网站搭建：如何选择适合自己的建站程序或框架？ 2025-06-10
- 64M VPS建站：能否支持高流量网站运行？ 2025-06-10
- 64M VPS建站：怎样选择合适的域名和SSL证书？ 2025-06-10
- 64M VPS建站：怎样优化以提高网站加载速度？ 2025-06-10
