Difftime()C库函数
在这里,我们将看到difftime()C中的函数是什么。difftime()用来获取两个时间值之间的差。
difftime()有两个时间参数,第一个是下限,第二个是上限。它返回这两个参数之间的差异。
示例
#include <time.h>
#include <stdio.h>
#include <unistd.h>
main() {
int sec;
time_t time1, time2;
time(&time1);
printf("Current Time: %ld\n",time1);
for (sec = 1; sec <= 5; sec++){
sleep(1);
printf("Count: %d\n",sec);
}
time(&time2);
printf("Ending Time: %ld\n",time2);
printf("Difference is %.2f seconds", difftime(time2, time1));
}输出结果
Current Time: 1554918635 Count: 1 Count: 2 Count: 3 Count: 4 Count: 5 Ending Time: 1554918640 Difference is 5.00 seconds
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