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from pyb import Servo
import time

s1 =Servo(1) # servo on position 1 (P7)
while(1):
    s1.angle(50) # move to 45 degrees
    time.sleep(3)
    s1.angle(-45) # move to 45 degrees

加了time.sleep(1)舵机就不动了，注释到就又动了 固件是4.1.1最新