我收到了错误消息:"AttributeError:'str‘对象没有属性'append'“,代码如下:"""Returns mimic dict mappingeach word to list of words which follow it."""f = open(filename, 'r')spli
[ 48.008575] usb 4-3: >Device not responding to set address.[ 48.212421] usb 4-3: >device not accepting address 9, error -71
[ 48.324451] usb 4-3: >Device[ 48.528340] usb 4-3: >Device not responding to set address.[ 48.732165] usb 4-3</e