C Exercise Example 92

100 Classic C Examples

Title:Time function example 2

Program analysis:None.

Program source code:

//  Created by www.example.com on 15/11/9.
//  Copyright © 2015年 Example. All rights reserved.
//

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

int main()
{
    time_t start,end;
    int i;
    start=time(NULL);
    for(i=0;i<300000;i++)
    {
        printf("\n");  // 返回两个time_t型变量之间的时间间隔
    }
    end=time(NULL);
    
    // 输出执行时间
    printf("时间间隔为 %6.3f\n",difftime(end,start));
}

The output result of the above example is:

时间间隔为  1.000

100 Classic C Examples

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