这个是我自己做的请大家多多指教，不知道可不可以用，我还是初学者，请大家多多的帮忙哦-this what I do for myself please exhibitions, do not know elucidation, I still beginners Please help a lot of oh-huh

自己写的垃圾程序，功能很差，只能传输单个文件。抱歉了-a \"rubbish\" programm wrote by myself,the function is simple,just can transmit a single file.sorry