您好，我现在已经可以成功运行了 import sensor, image, time, lcd, json,math,ujson from pyb import LED from pyb import UART red_led = LED(1) green_led = LED(2) blue_led = LED(3) sensor.reset() sensor.set_pixformat(sensor.RGB565) sensor.set_framesize(sensor.QVGA) # Special 128x160 framesize for LCD Shield. sensor.skip_frames(time = 2000) sensor.set_auto_gain(False) # must turn this off to prevent image washout... uart = UART(3, 115200) uart.init(115200, bits=8, parity=None, stop=1) while(True): da=3 img = sensor.snapshot() img.lens_corr(1.8) # strength of 1.8 is good for the 2.8mm lens. if(uart.any()): d=uart.readline().decode().strip() da=int(d) if(da==1): green_led.off() blue_led.off() red_led.on() time.sleep_ms(1000) print('red') else: if(da==2): red_led.off() blue_led.off() green_led.on() time.sleep_ms(1000) print('green') else: if(da==3): red_led.off() green_led.off() blue_led.on() time.sleep_ms(1000) print('blue') 要删掉一行代码， if(uart.any()):后面删去 time.sleep(200)，是我延时太长了 ，反应的有些慢 ，谢谢小助手！！！