网络编程的课程设计，有完整的报告！DNS服务器，本地可以根据文件进行域名的解析，对不在解析表中的文件再像外部DNS服务器进行查询！！有报告-Network programming in curriculum design, a complete report! DNS server, local file name based on the analysis of the file does not resolve the table as an external DNS server then queries! ! There are reports