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29 lines
994 B
29 lines
994 B
import time
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from datetime import datetime
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def display_live_time():
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"""
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实时显示当前时间，每秒更新一次。
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"""
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try:
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while True:
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# 1. 获取当前时间
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now = datetime.now()
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# 2. 格式化时间为字符串 (年-月-日 时:分:秒)
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current_time_str = now.strftime("%Y-%m-%d %H:%M:%S")
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# 3. 打印时间。end='\r' 表示不换行，而是将光标移回行首，实现覆盖更新。
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# flush=True 确保立即显示在终端。
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print(f"当前时间: {current_time_str}", end="\r", flush=True)
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# 4. 暂停1秒
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time.sleep(1)
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except KeyboardInterrupt:
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# 当用户按下 Ctrl+C 时，捕获 KeyboardInterrupt 异常，
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# 打印一个换行和提示信息，然后优雅地退出程序。
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print("\n程序已退出。")
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if __name__ == "__main__":
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display_live_time() |