Detailed explanation of the method of realizing keyboard operation with python in automation

Originally, press key method was used for keyboard operation in robotframework, but this method needs to write locator of the operated object, which is not very convenient. Now, a method for writing keyboard operation in win32api library has been found (note: the operation interface of this method must be at the top level). First, python library of win32api needs to be installed, and commands are used:

pip install pywin32

The specific implementation code is as follows:

import win32api
import win32con

class MyLibrary(object):
  def keybd_event(self,VK_CODE): #VK_CODE Encode the keyboard 
    # @Keyboard
    # input
    VK_CODE = int(VK_CODE)
    print ":::VK_CODE:", VK_CODE
    win32api.keybd_event(VK_CODE, 0, 0, 0)
    win32api.keybd_event(VK_CODE, 0, win32con.KEYEVENTF_KEYUP, 0)
    print ":::press", str(VK_CODE), "successfully!"
    time.sleep(2)

if __name__ == '__main__':
    keybd_event(40) # Keyboard press direction down key 

Common keyboard codes: (from Baidu)

ESC Bond VK_ESCAPE (27)
Enter key: VK_RETURN (13)
TAB key: VK_TAB (9)
Caps Lock Key: VK_CAPITAL (20)
Shift key: VK_SHIFT (16)
Ctrl key: VK_CONTROL (17)
Alt key: VK_MENU (18)
Spacebar: VK_SPACE (32)
Backspace key: VK_BACK (8)
Left logo key: VK_LWIN (91)
Right logo key: VK_RWIN (92)
Right mouse button shortcut: VK_APPS (93)
Insert key: VK_INSERT (45)
Home key: VK_HOME (36)
Page Up: VK_PRIOR (33)
PageDown: VK_NEXT (34)
End key: VK_END (35)
Delete key: VK_DELETE (46)
Arrow keys (→): VK_LEFT (37)
Arrow keys (↑): VK_UP (38)
Arrow keys (→): VK_RIGHT (39)
Arrow keys (left): VK_DOWN (40)
F1 Key: VK_F1 (112)
F2 Key: VK_F2 (113)
F3 Key: VK_F3 (114)
F4 Key: VK_F4 (115)
F5 Key: VK_F5 (116)
F6 Key: VK_F6 (117)
F7 Key: VK_F7 (118)
F8 Key: VK_F8 (119)
F9 Key: VK_F9 (120)
F10 Key: VK_F10 (121)
F11 Key: VK_F11 (122)
F12 Key: VK_F12 (123)
Num Lock Key: VK_NUMLOCK (144)
Keypad 0: VK_NUMPAD0 (96)
Keyboard 1: VK_NUMPAD1 (97)
Keyboard 2: VK_NUMPAD2 (98)
Keyboard 3: VK_NUMPAD3 (99)
Keyboard 4: VK_NUMPAD4 (100)
Keyboard 5: VK_NUMPAD5 (101)
Keypad 6: VK_NUMPAD6 (102)
Keypad 7: VK_NUMPAD7 (103)
Keypad 8: VK_NUMPAD8 (104)
Keyboard 9: VK_NUMPAD9 (105)
Keyboard. : VK_DECIMAL (110)
Keypad *: VK_MULTIPLY (106)
Keyboard +: VK_ADD (107)
Keypad-: VK_SUBTRACT (109)
Keypad/: VK_DIVIDE (111)
Pause Break Key: VK_PAUSE (19)
Scroll Lock Key: VK_SCROLL (145)