为什么没有人去Shared Files中上传个人的学习资料呢？= why no one like to upload his/her study files ? 把自己的学习资料拿出来与他人共享，不亦乐乎？上传的步骤非常简单，只需点左上角的Upload按钮，简单地填写表单提交就成功了。I think it's a happy thing to share his/her files with others who need them.if you have some documents need to upload,just follow 2 steps:1. go to shared files page and click the Upload button;2.finish the form and submit.