很方便，不需注册，不需填写email，支持上传文件就可以了
网站网址：http://drop.io/
Each drop is:
A private place for storing and sharing photos, video, audio, notes, docs, etc. Each is accessible only to those whom you tell exactly where to look.
No signup and no ‘account’. We don’t even ask for your email. Create as many drops as you want, and access each at: drop.io/thedropname. learn more
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