这种方法实现简单，但需要在每个 iOS 调用点手动处理类型转换。
sample_rates=44100:channel_layouts=stereo,silenceremove=start_periods=0:\
。safew官方版本下载对此有专业解读
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Camera-equipped sports shades have secure fit, open-ear speakers, mics and advanced Garmin and Strava integration