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如何控制笔记本的 usb 口电源？

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  •   mrhuiyu · Feb 14, 2017 · 1518 views
    This topic created in 3421 days ago, the information mentioned may be changed or developed.
    笔记本接了一个台灯，如果控制灯开关呢？就是让 usb 口断电和通电。
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