Question

import RPi.GPIO as GPIO
import SimpleMFRC522

reader = SimpleMFRC522.SimpleMFRC522()

try:
        text = int(raw_input('New data:'))
        print("Now place your tag to write")

        reader.write(text)
        print("Written")
finally:
        GPIO.cleanup()

运行后出现此错误： AttributeError：'int'对象没有属性'ljust'

Answer 1

在开始时删除int()转换：

text = raw_input('New data:')

...因为write()似乎不支持int作为参数：

reader.write(text) # here was the problem

'int'对象没有属性'ljust'

1 个答案: