修改功能：
F2 - Infinite Step [on/off]
F3 - 99999 Gold [on/off]
F4 - 99999 Stone [on/off]
F5 - 99999 Magic of Life [on/off]
F6 - 99999 Magic of Fire [on/off]
F7 - 99999 Magic of Earth [on/off]
F8 - Infinite Stat Points [on/off]
F9 - Infinite Skill Points [on/off]
F10 - Unlimited Construction [on/off]
F11 - Unlimited Learning Magic [on/off]
F12 - Unlimited Use of Magic [on/off]