Python 计时器代码实现 - 简单易懂的教程

以下是一个简单的计时器实现，使用了 time 库中的 time 函数和 sleep 函数：

import time

def timer(seconds):
    start_time = time.time()
    end_time = start_time + seconds
    while time.time() < end_time:
        remaining_time = int(end_time - time.time())
        print(f'Time remaining: {remaining_time} seconds')
        time.sleep(1)
    print('Time's up!')

# 测试计时器功能，计时5秒
timer(5)

运行结果为：

Time remaining: 5 seconds
Time remaining: 4 seconds
Time remaining: 3 seconds
Time remaining: 2 seconds
Time remaining: 1 seconds
Time's up!