183 lines
5.4 KiB
Python
183 lines
5.4 KiB
Python
import time
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import threading
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import sys
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class Timer:
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def __init__(self):
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self.total_seconds = 0
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self.remaining_seconds = 0
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self.is_running = False
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self.is_paused = False
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self.thread = None
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def set_timer(self, minutes, seconds):
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"""设置倒计时时间"""
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self.total_seconds = minutes * 60 + seconds
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self.remaining_seconds = self.total_seconds
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print(f"计时器设置为 {minutes} 分 {seconds} 秒")
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def start(self):
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"""开始倒计时"""
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if self.total_seconds <= 0:
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print("请先设置计时器时间！")
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return
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if self.is_running and not self.is_paused:
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print("计时器已经在运行中！")
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return
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self.is_running = True
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self.is_paused = False
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if self.thread is None or not self.thread.is_alive():
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self.thread = threading.Thread(target=self._countdown)
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self.thread.daemon = True
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self.thread.start()
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print("计时器开始！")
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def pause(self):
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"""暂停计时器"""
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if not self.is_running:
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print("计时器未运行！")
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return
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if self.is_paused:
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print("计时器已经暂停！")
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return
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self.is_paused = True
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print("计时器已暂停")
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def resume(self):
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"""继续计时器"""
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if not self.is_running:
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print("计时器未运行！")
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return
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if not self.is_paused:
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print("计时器未暂停！")
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return
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self.is_paused = False
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print("计时器继续")
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def reset(self):
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"""重置计时器"""
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self.is_running = False
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self.is_paused = False
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self.remaining_seconds = self.total_seconds
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print("计时器已重置")
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def _countdown(self):
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"""倒计时线程函数"""
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while self.remaining_seconds > 0 and self.is_running:
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if not self.is_paused:
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mins, secs = divmod(self.remaining_seconds, 60)
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time_format = f"{mins:02d}:{secs:02d}"
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sys.stdout.write(f"\r剩余时间: {time_format}")
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sys.stdout.flush()
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time.sleep(1)
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self.remaining_seconds -= 1
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if self.remaining_seconds <= 0 and self.is_running:
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print("\n时间到！计时器结束！")
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self.is_running = False
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else:
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print("\n计时器已停止")
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def get_status(self):
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"""获取计时器状态"""
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if self.is_running:
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if self.is_paused:
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status = "已暂停"
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else:
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status = "运行中"
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else:
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status = "未运行"
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mins, secs = divmod(self.remaining_seconds, 60)
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time_format = f"{mins:02d}:{secs:02d}"
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return f"状态: {status}, 剩余时间: {time_format}"
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def main():
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"""主函数，提供命令行交互界面"""
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timer = Timer()
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print("=== Python 计时器 ===")
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print("命令列表:")
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print(" set <分钟> <秒> - 设置计时器时间")
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print(" start - 开始计时器")
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print(" pause - 暂停计时器")
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print(" resume - 继续计时器")
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print(" reset - 重置计时器")
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print(" status - 查看状态")
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print(" help - 显示帮助")
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print(" quit - 退出程序")
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print()
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while True:
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try:
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command = input(">>> ").strip().lower().split()
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if not command:
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continue
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cmd = command[0]
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if cmd == "set":
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if len(command) != 3:
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print("用法: set <分钟> <秒>")
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continue
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try:
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minutes = int(command[1])
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seconds = int(command[2])
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if minutes < 0 or seconds < 0:
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print("时间不能为负数！")
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continue
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timer.set_timer(minutes, seconds)
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except ValueError:
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print("请输入有效的数字！")
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elif cmd == "start":
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timer.start()
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elif cmd == "pause":
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timer.pause()
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elif cmd == "resume":
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timer.resume()
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elif cmd == "reset":
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timer.reset()
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elif cmd == "status":
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print(timer.get_status())
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elif cmd == "help":
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print("命令列表:")
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print(" set <分钟> <秒> - 设置计时器时间")
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print(" start - 开始计时器")
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print(" pause - 暂停计时器")
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print(" resume - 继续计时器")
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print(" reset - 重置计时器")
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print(" status - 查看状态")
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print(" help - 显示帮助")
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print(" quit - 退出程序")
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elif cmd == "quit":
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print("退出计时器程序")
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break
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else:
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print(f"未知命令: {cmd}，输入 'help' 查看帮助")
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except KeyboardInterrupt:
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print("\n程序被中断")
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break
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except Exception as e:
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print(f"发生错误: {e}")
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if __name__ == "__main__":
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main() |