可通过文件，udp, 等多种方式实现程序调试信息输出检视。udp采用局域网广播方式。所以可以在局域网中监视另一台计算上运行程序的信息。-Through the document, udp, realize a variety of ways, such as program debugging information output to view. udp broadcast using local area network. Therefore, surveillance in the loc