C语言记录执行时间

小飞将

于 2021-12-07 18:56:19 发布

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分类专栏：基础 C程序设计语言文章标签： c语言开发语言后端

原文链接：https://www.tutorialspoint.com/c_standard_library/c_function_difftime.htm

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#include <stdio.h>
#include <time.h>

int main () {
   time_t start_t, end_t;
   double diff_t;

   printf("Starting of the program...\n");
   time(&start_t);

   printf("Sleeping for 5 seconds...\n");
   sleep(5);

   time(&end_t);
   diff_t = difftime(end_t, start_t);

   printf("Execution time = %f\n", diff_t);
   printf("Exiting of the program...\n");

   return(0);
}

Starting of the program...
Sleeping for 5 seconds...
Execution time = 5.000000
Exiting of the program...