17 lines
569 B
Python
17 lines
569 B
Python
"""设备类型检测工具。"""
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def detect_device_type(user_agent: str | None) -> str:
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"""根据 User-Agent 判断设备类型：'pc' 或 'mobile'。
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返回 'mobile' 表示手机/平板等移动设备，返回 'pc' 表示桌面设备或无法识别。
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"""
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if not user_agent:
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return "pc"
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ua = user_agent.lower()
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mobile_keywords = [
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"mobile", "android", "iphone", "ipad", "ipod",
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"windows phone", "blackberry", "opera mini", "opera mobi",
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]
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return "mobile" if any(kw in ua for kw in mobile_keywords) else "pc"
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