网络版赛车游戏代码，主要写的是客户端，这个游戏是对键盘的监听，控制小车上，下，左，右的移动，小车赛道有边界限制等，界面华丽-Online racing game code, mainly written by the client, this game is the keyboard monitor and control a small car, down, left and right movement, restrictions on car circuit with borders, b