54 lines
1.1 KiB
C
54 lines
1.1 KiB
C
#include <stdlib.h>
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#include <time.h>
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#include <sys/time.h>
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// 时间结构体
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struct tm *local_time; // time to show or modify
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void settime(int tm_hour, int tm_min, int tm_sec)
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{
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struct tm *time_set = NULL;
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struct timeval tv;
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struct timezone tz;
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/* 获取当前时间 */
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gettimeofday(&tv, &tz);
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/* 获取当前时间 */
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time_set = gmtime(&tv.tv_sec);
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/* 设置当前时间结构体 */
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time_set->tm_hour = tm_hour;
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time_set->tm_min = tm_min;
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time_set->tm_sec = tm_sec;
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/* 获取用秒表示的时间 */
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tv.tv_sec = mktime(time_set);
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/* 设置当前时间 */
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settimeofday(&tv, &tz);
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}
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void refresh_clock(void)
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{
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time_t timep;
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time(&timep);
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local_time = localtime(&timep); // 读取系统时间
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// 时分秒
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int hour = local_time->tm_hour;
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int minute = local_time->tm_min;
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int second = local_time->tm_sec;
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printf("h = %d, m = %d, s = %d\n", hour, minute, second);
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}
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int main(int argc, char *argv[])
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{
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printf("修改前的时间：\n");
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refresh_clock();
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settime(11, 34, 50);
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printf("修改后的时间：\n");
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refresh_clock();
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return 0;
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} |