在闪烁 LED 灯的编程中, 执行digitalWrite(13,LOW)和delay(1000) 指令有何结果 ?
A.
编号 13 的接脚出现一低电位数位讯号
B.
编号 13 的接脚出现一低电位类比讯号
C.
编号 13 的接脚出现一低电位数位讯号, 并维持一秒钟
D.
编号 13 的接脚出现一低电位类比讯号, 并维持一秒钟
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