为什么执行亮白灯,led只有亮红色和绿色的两个微小点,还有蓝色好像坏掉了,是什么原因?
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import time, pyb led1 = pyb.LED(1) # Red LED = 1, Green LED = 2, Blue LED = 3, IR LEDs = 4. led2 = pyb.LED(2) led3 = pyb.LED(3) usb = pyb.USB_VCP() # This is a serial port object that allows you to # communciate with your computer. While it is not open the code below runs. while(1): led1.on() led2.on() led3.on() time.sleep_ms(150) led1.off() led2.off() led3.off() time.sleep_ms(100) led1.on() led2.on() led3.on() time.sleep_ms(150) led1.off() led2.off() led3.off() time.sleep_ms(100) 
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那就寄回维修吧。