不可能。3 way 开关有3个端子，需要3根线，裸露地线不能算。

来源: 徒劳于 2023-01-12 18:31:05 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.