python键盘操作工具：ctypes、pyautogui

这里模拟 Win + Ctrl + L 组合键

1、ctypes

ctypes库，它允许我们直接调用Windows API来模拟键盘输入。

import ctypes
import time

# 定义所需的常量和结构
LONG = ctypes.c_long
DWORD = ctypes.c_ulong
ULONG_PTR = ctypes.POINTER(DWORD)
WORD = ctypes.c_ushort

class MOUSEINPUT(ctypes.Structure):
    _fields_ = (("dx", LONG),
                ("dy", LONG),
                ("mouseData", DWORD),
                ("dwFlags", DWORD),
                ("time", DWORD),
                ("dwExtraInfo", ULONG_PTR))

class KEYBDINPUT(ctypes.Structure):
    _fields_ = (("wVk", WORD),
                ("wScan", WORD),
                ("dwFlags", DWORD),
                ("time", DWORD),
                ("dwExtraInfo", ULONG_PTR))

class HARDWAREINPUT(ctypes.Structure):
    _fields_ = (("uMsg", DWORD),
                ("wParamL", WORD),
                ("wParamH", WORD))

class INPUT(ctypes.Structure):
    class _INPUT(ctypes.Union):
        _fields_ = (("ki", KEYBDINPUT),
                    ("mi", MOUSEINPUT),
                    ("hi", HARDWAREINPUT))
    _anonymous_ = ("_input",)
    _fields_ = (("type", DWORD),
                ("_input", _INPUT))

# 定义按键代码
VK_LWIN = 0x5B
VK_CONTROL = 0x11
VK_L = 0x4C

# 定义SendInput函数
SendInput = ctypes.windll.user32.SendInput
SendInput.restype = ctypes.c_uint
SendInput.argtypes = [ctypes.c_uint, ctypes.POINTER(INPUT), ctypes.c_int]

# 创建INPUT结构
def create_input(vk, press):
    return INPUT(type=1, ki=KEYBDINPUT(wVk=vk, wScan=0, dwFlags=0x0002 if not press else 0))

# 发送按键
def send_key_combo(keys):
    inputs = [create_input(key, True) for key in keys]
    inputs += [create_input(key, False) for key in reversed(keys)]
    n_inputs = len(inputs)
    array_type = INPUT * n_inputs
    c_inputs = array_type(*inputs)
    SendInput(n_inputs, c_inputs, ctypes.sizeof(INPUT))

# 等待5秒，确保系统已完全启动
time.sleep(5)

# 发送 Win + Ctrl + L 组合键
send_key_combo([VK_LWIN, VK_CONTROL, VK_L])

2、pyautogui

https://www.jianshu.com/p/3f5d0252f4a3
pyautogui库是一种用于自动化任务的强大工具，它可以模拟鼠标和键盘操作，执行各种GUI任务。无论是进行屏幕截图、自动填写表单、自动化测试还是进行GUI操作，pyautogui都可以派上用场。

安装

pip install pyautogui

代码

import pyautogui
import time

# 确保 pyautogui 库已安装
# 如果没有安装，可以使用以下命令进行安装：
# pip install pyautogui

# 为了确保按键按下的顺序正确，可以稍微延迟一下
time.sleep(2)

# 按下 Win 键
pyautogui.keyDown('win')

# 按下 Ctrl 键
pyautogui.keyDown('ctrl')

# 按下 L 键
pyautogui.keyDown('l')

# 释放 L 键
pyautogui.keyUp('l')

# 释放 Ctrl 键
pyautogui.keyUp('ctrl')

# 释放 Win 键
pyautogui.keyUp('win')