两个按键控制两个不同的功能

nblf

# Untitled - By: 51678 - 周日 10月 11 2020

import sensor, image, time, pyb

sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
sensor.skip_frames(time = 2000)

clock = time.clock()
a = pyb.Pin('P0',pyb.Pin.IN) #按键a接P0
b = pyb.Pin('P1',pyb.Pin.IN) #按键b接P1
a.value()
b.value()
while(True):
    while(not a):
        clock.tick()
        img = sensor.snapshot()
        print("Hello World!")
    while(not b):
        clock.tick()
        img = sensor.snapshot()
        print("Hello Universe!")

代码没报错但是P0，P1口给到高电平没反应

kidswong999

你需要在循环里面调用value()，否则值怎么会变？

while(True):
    while(not a.value()):
        clock.tick()
        img = sensor.snapshot()
        print("Hello World!")
    while(not b.value()):
        clock.tick()
        img = sensor.snapshot()
        print("Hello Universe!")

nblf

明白了多谢！！！