自己写的简单的tftp客户端和服务器端程序。运行服务器端需要先关闭系统的tftp server服务，让出69号端口。服务端和客户端都没有处理请求中的netascii和octec关键字，不区分二进制文件和文本文件在回车上的区别，所以用系统中的tftp客户端以netascii方式从本服务器端下载的非文本文件会出错-simple tftp client and server program. Run server-side u should shut down the system tftp server 69 ports. Service and client are not dealt with in a request netascii and octec keywords, does not distinguish between binary and text files on the difference in the transport, so use the system tftp client netascii to download from the server-side non-text Files will be wrong