目前,随着网络技术的飞速发展,互联网已经走进了千家万户,给大家的学习、生活带来了很大的方便。可以在网上共享自己的文件,通过邮箱传输文本信息和附件等等,但是现在使用较多的还是免费邮箱,而免费邮箱在使用时有很多不方便的地方,比如传输速度慢、邮件服务器不稳定、易产生退信等,最大的问题是免费邮箱对所传输的附件大小是有限制的,一般只允许不超过15～20兆的文件。如果想传输一个几十兆的文件就不能通过邮箱实现,而且当文件个数比较多的时候,就 At present, with the rapid development of network technology, the Internet has entered tens of thousands of households, bringing great convenience to everyone’s study and living. You can share your own files online, send text messages and attachments via email, and so on, but now use more or free emails. There are many inconvenient places for free emails, such as slow transfers and mail server instability , Easy to produce bounce, etc., the biggest problem is the free e-mail on the size of the attached file is limited, generally only allows no more than 15 ~ 20 trillion files. If you want to transfer a few tens of megabytes of documents can not be achieved through the mailbox, and when the number of documents more time