有没有办法 create/modify 在 python 中即时运行

Question

我尝试用 python 模拟键盘，但我不知道如何处理多个键盘按钮按下。下面的代码在同时按下 1 或 2 个键的情况下工作得很好 (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())

但是如果同时按下了3个或更多的按钮呢？最优雅的方法是什么？我可以只添加 if '+' count == 2，if '+' count == 3 等等，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())

Answer 1

我不熟悉您正在使用的 SendInput/Keyboard 东西，所以我假设它们是您自定义和编写的。

假设 SendInput 的定义类似于 def SendInput(*args)（如@JETM 所建议）并且 last_arg 实际上应该是 current_arg，您应该可以调用它像这样：

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)

使用此方法，在 SendInput 中，args 变量将是一个列表，每个键都有一个键盘对象。

有没有办法 create/modify 在 python 中即时运行

Is there a way to create/modify function on the fly in python

python

dynamic-function