交作业:
from machine import Pin,PWM
import time
pin=Pin(16,Pin.OUT)
pwm=PWM(pin,freq=1000,duty=0)
music_list=[1,1,5,5,6,6,5,4,4,3,3,2,2,1,5,5,4,4,3,3,2,5,5,4,4,3,3,2, 1,1,5,5,6,6,5,4,4,3,3,2,2,1]
note_list=[-1,262,294,330,350,393,441,495]
yi_pai=[6,13,20,27,34,41]
while True:
for i in range(len(music_list)):
pwm.duty(300)
from machine import Pin,PWM
import time
pin=Pin(16,Pin.OUT)
pwm=PWM(pin,freq=1000,duty=0)
music_list=[1,1,5,5,6,6,5,4,4,3,3,2,2,1,5,5,4,4,3,3,2,5,5,4,4,3,3,2, 1,1,5,5,6,6,5,4,4,3,3,2,2,1]
note_list=[-1,262,294,330,350,393,441,495]
yi_pai=[6,13,20,27,34,41]
while True:
for i in range(len(music_list)):
pwm.duty(300)














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