获得时间并做成字符串

随便贴点代码，以后没准有用

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1. #include <stdio.h>
2. #include <stdlib.h>
3. #include <string.h>
4. #include <time.h>
5. #include <sys/time.h>
6. #include <unistd.h>
8. char *get_time_for_uuid(char *time_string)
9. {
10.         time_t timep;
11.         struct tm *p;
12.         struct timeval tv;
13. int msec = 0;
15.         gettimeofday (&tv , NULL);
16. time(&timep);
17.         p=gmtime(取地址符号timep);
19.         msec = tv.tv_usec/1000;
20.         sprintf(time_string, "百分号.4d%.2d%.2d%.2d%.2d%.2d%.2d",
21. (1900+p->tm_year),
22. (1+p->tm_mon),
23.                         p->tm_mday,
24.                         p->tm_hour,
25.                         p->tm_min,
26.                         p->tm_sec,
27.                         msec
28. );
30.         fprintf(stdout, "T-bagwell |%s|\n", time_string);
31.         return time_string;
32. }
35. int main()
36. {
37.         char *uuid = NULL;
38.         char time_string[32];
39.         memset(time_string, 0, 32);
40.         uuid = get_time_for_uuid(time_string);
42.         fprintf(stdout, "T-bagwell the uuid = |%s|\n", uuid);
44.         return 0;
45. }