说明：  详细分析了嵌入式系统DHCP客户端协议的实现原理，给出了详细的协议状态变迁图，对Rabbit2000嵌入式系统DHCP客户端协议进行了改进，引入了新的服务器DHCPOFFER响应选择策略，并给出了实现代码
(A detailed analysis of the embedded system DHCP client protocol implementation of the principle of the agreement gives a detailed state transition diagram, right Rabbit2000 embedded system DHCP client protocol has been improved, the introduction of a new server DHCPOFFER response to selection strategy, and gives the realization of the code)