调用 win32 API，，，，，模拟按键 keybd_eventkeybd_event(9,0,0,0) #Tabkeybd_event(17,0,KEYEVENT_KEYUP,0) #Realize the Ctrl buttonkeybd_event(19,0,KEYEVENT_KEYUP,0) #Realize the Tab button
rand()函数
