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wangheda

wangheda

V2EX member #211153, joined on 2017-01-17 15:24:14 +08:00
wangheda's recent replies
Jan 18, 2017
Replied to a topic by martyyyyy › 奇思妙想 › 想远程检测厕所是否有人，求讨论
哪儿那么费劲啊，想太多了，小时候玩过音乐贺卡没？以前 5 毛一个，现在淘宝顶多 2 块一个，装在厕所门上，一开门就会通电，你在接个无线不就得了
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