问题
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What's the difference between a URI and a URL?
What is a URI, and what is the difference between URL and URI?
回答1:
Conceptually, a URI identifies a resource, and a URL shows you how to find it. Thus URI deals with parsing, local/absolute paths, etc. and URL deals with connecting to streams and such.
来源：https://stackoverflow.com/questions/4428196/what-is-the-difference-between-a-uri-and-url