如何在python 2.7中按下按钮“输入”，而无需用户按下它，从代码

Question

这个问题可能又被回答了，因为我在问这个问题之前搜索过它。 回答的人说应该用win32api，但是不知道在哪，可以导入（python导入的时候找不到）或者怎么用，因为最近开始学python . 我需要的是一个代码，它会自动按下“输入”按钮。 如果我需要某个图书馆，我想知道在哪里可以找到它。 如果我的问题不清楚或者您需要我添加更多内容，请告诉我。 提前致谢 ：）

Answer 1

也可以在不安装附加模块的情况下发送按键，请参阅以下框架：

import ctypes

SendInput = ctypes.windll.user32.SendInput

PUL = ctypes.POINTER(ctypes.c_ulong)

class KeyBdInput(ctypes.Structure):
    _fields_ = [("wVk", ctypes.c_ushort),
                ("wScan", ctypes.c_ushort),
                ("dwFlags", ctypes.c_ulong),
                ("time", ctypes.c_ulong),
                ("dwExtraInfo", PUL)]

class HardwareInput(ctypes.Structure):
    _fields_ = [("uMsg", ctypes.c_ulong),
                ("wParamL", ctypes.c_short),
                ("wParamH", ctypes.c_ushort)]

class MouseInput(ctypes.Structure):
    _fields_ = [("dx", ctypes.c_long),
                ("dy", ctypes.c_long),
                ("mouseData", ctypes.c_ulong),
                ("dwFlags", ctypes.c_ulong),
                ("time",ctypes.c_ulong),
                ("dwExtraInfo", PUL)]

class Input_I(ctypes.Union):
    _fields_ = [("ki", KeyBdInput),
                 ("mi", MouseInput),
                 ("hi", HardwareInput)]

class Input(ctypes.Structure):
    _fields_ = [("type", ctypes.c_ulong),
                ("ii", Input_I)]

def PressKey(hexKeyCode):
    extra = ctypes.c_ulong(0)
    ii_ = Input_I()
    ii_.ki = KeyBdInput( hexKeyCode, 0x48, 0, 0, ctypes.pointer(extra) )
    x = Input( ctypes.c_ulong(1), ii_ )
    ctypes.windll.user32.SendInput(1, ctypes.pointer(x), ctypes.sizeof(x))

def ReleaseKey(hexKeyCode):
    extra = ctypes.c_ulong(0)
    ii_ = Input_I()
    ii_.ki = KeyBdInput( hexKeyCode, 0x48, 0x0002, 0, ctypes.pointer(extra) )
    x = Input( ctypes.c_ulong(1), ii_ )
    ctypes.windll.user32.SendInput(1, ctypes.pointer(x), ctypes.sizeof(x))

#############################################################################################################################

lookup = {"a":(0x41),"A":(0x10,0x41),
          "b":(0x42),"B":(0x10,0x42),
          "c":(0x43),"C":(0x10,0x43),
          "d":(0x44),"D":(0x10,0x44),
          "e":(0x45),"E":(0x10,0x45),
          "f":(0x46),"F":(0x10,0x46),
          "g":(0x47),"G":(0x10,0x47),
          "h":(0x48),"H":(0x10,0x48),
          "i":(0x49),"I":(0x10,0x49),
          "j":(0x4a),"J":(0x10,0x4a),
          "k":(0x4b),"K":(0x10,0x4b),
          "l":(0x4c),"L":(0x10,0x4c),
          "m":(0x4d),"M":(0x10,0x4d),
          "n":(0x4e),"N":(0x10,0x4e),
          "o":(0x4f),"O":(0x10,0x4f),
          "p":(0x50),"P":(0x10,0x50),
          "q":(0x51),"Q":(0x10,0x51),
          "r":(0x52),"R":(0x10,0x52),
          "s":(0x53),"S":(0x10,0x53),
          "t":(0x54),"T":(0x10,0x54),
          "u":(0x55),"U":(0x10,0x55),
          "v":(0x56),"V":(0x10,0x56),
          "w":(0x57),"W":(0x10,0x57),
          "x":(0x58),"X":(0x10,0x58),
          "y":(0x59),"Y":(0x10,0x59),
          "z":(0x5a),"Z":(0x10,0x5a),

          "0":(0x30),
          "1":(0x31),
          "2":(0x32),
          "3":(0x33),
          "4":(0x34),
          "5":(0x35),
          "6":(0x36),
          "7":(0x37),
          "8":(0x38),
          "9":(0x39),

          "!":(0x10,0x31),
          "?":(0x10,0xbf),
          "\n":(0x0d),
          " ":(0x20),
          "'":(0x6c),
          "*":(0x10,0x38),
          "+":(0x10,0xbb),
          "/":(0xbf),
          "(":(0x10,0x39),
          ")":(0x10,0x30),
          "-":(0xbd),
          ".":(0xbe),}

要使用它，您可以添加：

PressKey(lookup["\n"])
ReleaseKey(lookup["\n"])

到脚本底部，或者将第一段代码保存为脚本并导入。

我为我需要的所有键码构建了查找字典，但可以在此处找到键码列表： MSDN Virtual Key Codes