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我有以下2个模块:

第一个Keyboard.py

import USB,evdev,threading,sys

global codigo
codigo = [1]
class Teclado:
    def __init__(self,port):
        self.puerto = USB.usb(port)
    def iniciar_teclado(self):
        p = threading.Thread(target=self.puerto.obtener_evento,args=(codigo))
        p.start()
        while 1:
            if codigo[0] == evdev.ecodes.KEY_A:
                print('A')
            elif codigo[0] == evdev.ecodes.KEY_B:
                print('B')

USB.py

import evdev,os,signal,sys
class usb:
    def __init__(self,dev):
        self.device = evdev.InputDevice(dev)
        print(self.device)
    def obtener_evento(self,c):
        for event in self.device.read_loop():
            if event.type == evdev.ecodes.EV_KEY and event.value == 1:
                c[0] = event.code

因此,要通过引用传递线程中的变量,我使用单个元素的列表。作为帮助,以下代码已作为参考:

>>> c = [1]
>>> def f(list):
>>>     list[0] = 'a'
>>> f(c)
>>> c[0]
'a'

但在我的代码中,在行中

c[0] = event.code

蟒蛇告诉我

TypeError:“int”对象不支持项目分配

4

1 回答 1

0

尝试

p = threading.Thread(target=self.puerto.obtener_evento,args=(codigo,))
于 2016-09-30T00:16:21.323 回答