有没有办法在python中动态创建/修改函数

时间:2016-02-19 18:19:00

标签: python dynamic-function

我尝试使用python模拟键盘,但我不知道如何处理多个键盘按键。下面的代码完全正常,同时按下1或2个键(fe' ctrl + c'):

if '+' in current_arg:
    current_arg = current_arg.split('+')
    current_arg[0] = current_arg[0].strip()
    current_arg[1] = current_arg[1].strip()

    SendInput(Keyboard(globals()["VK_%s" % current_arg[0].upper()]),
              Keyboard(globals()["VK_%s" % current_arg[1].upper()]))
    time.sleep(input_time_down())

    if len(last_arg) > 1 and type(last_arg) == list:
        SendInput(Keyboard(globals()["VK_%s" % last_arg[0].upper()], KEYEVENTF_KEYUP),
                  Keyboard(globals()["VK_%s" % last_arg[1].upper()], KEYEVENTF_KEYUP))
        time.sleep(input_time_down())
    else:
        SendInput(Keyboard(globals()["VK_%s" % last_arg.upper()], KEYEVENTF_KEYUP))
        time.sleep(input_time_down())

但如果同时按下3个或更多按钮怎么办?这样做最优雅的方法是什么?我可以添加if' +' count == 2,if' +' count == 3等但必须有更好的方法来做到这一点。我希望我的函数能够适应参数的数量。

例如:

keyboard_sim(' ctrl + shift + esc'):

if '+' in current_arg:
    current_arg = current_arg.split('+')
    current_arg[0] = current_arg[0].strip()
### function adds another current_arg for each argument
    current_arg[1] = current_arg[1].strip()
    current_arg[2] = current_arg[2].strip()

    SendInput(Keyboard(globals()["VK_%s" % current_arg[0].upper()]),
### function adds another Keyboard for each argument
              Keyboard(globals()["VK_%s" % current_arg[1].upper()]))
              Keyboard(globals()["VK_%s" % current_arg[2].upper()]))
    time.sleep(input_time_down())

    if len(last_arg) > 1 and type(last_arg) == list:
### function adds another Keyboard KEYEVENTF for each argument
        SendInput(Keyboard(globals()["VK_%s" % last_arg[0].upper()], KEYEVENTF_KEYUP),
                  Keyboard(globals()["VK_%s" % last_arg[1].upper()], KEYEVENTF_KEYUP))
                  Keyboard(globals()["VK_%s" % last_arg[2].upper()], KEYEVENTF_KEYUP))

        time.sleep(input_time_down())
    else:
    ### this is added so I won't get error if there is single key pressed
        SendInput(Keyboard(globals()["VK_%s" % last_arg.upper()], KEYEVENTF_KEYUP))
        time.sleep(input_time_down())

1 个答案:

答案 0 :(得分:1)

我不熟悉您正在使用的SendInput /键盘内容,因此我假设它们是由您自定义和编写的。

假设SendInput定义为def SendInput(*args)(由@JETM建议)并且last_arg实际上应该是current_arg,您应该能够像这样调用它:

arglist = current_arg.split('+')
# This will create a list of Keyboard objects
keys = [KeyBoard(globals()["VK_%s" % key.upper()]) for key in  arglist]
# *keys splits the list of Keyboard objects so that SendInput receives
# one entry in it's argument list for each Keyboard object in keys
SendInput(*keys)

使用它,在SendInput中,args变量将是一个列表,每个键都有一个Keyboard对象。