从busybox提取的ftp客户端程序，main函数是测试函数。用arm-linux-gcc ftpClient.c -o main编译后即可运行。-Busybox extracted from the ftp client program, main function is to test the function. Use arm-linux-gcc ftpClient.c-o main compiled to run.

基于linux系统利用c语言实现ftp传输协议。