看本文章之前默认已经知道了winio的实现原理，这边文章主要讲winio在python中的运用。

按下并放开“A”键，使用winio的时，伪代码：   SetByte($64,$D2); SetByte($60,$1E);

python的代码实现：

# 键盘和 winio中的编码的对应关系

vk = {'A': 0x1E,'B': 0x30, 'S': 0x1F,'W': 0x11,'F11':0x57,    'BKSP':0x0E,'DELETE':0x53,'H':0x23,'X':0x2D,'Y':0x15,'S':0x1F,'SPACE':0x39,'N':0x31,'G':0x22,'L_SHFT':0x2A,'R':0x13 }

# 发送命令
KBC_KEY_CMD = 0x64

# 写入数据
KBC_KEY_DATA = 0x60

# 按下按键代码

def key_down(scancode):keyCode = vk[scancode]winio = get_winio()wait_for_buffer_empty();winio.set_port_byte(KBC_KEY_CMD, 0xd2);wait_for_buffer_empty();winio.set_port_byte(KBC_KEY_DATA, keyCode)# 松开按键代码
def key_up(scancode):keyCode = vk[scancode]winio = get_winio()wait_for_buffer_empty();winio.set_port_byte( KBC_KEY_CMD, 0xd2);wait_for_buffer_empty();winio.set_port_byte( KBC_KEY_DATA, keyCode | 0x80);

# 按下按键再松开
def key_press(scancode, press_time = 0.2):key_down( scancode )time.sleep( press_time )key_up( scancode )

if __name__ == '__main__':key_press('A')