URL (Uniform Resource Locator): Uniform Resource Locator, each file on the Internet has a unique URL, the base URL contains the protocol, IP address, path and file name.
Focus: The difference between Herf and SRC
href (hypertext Reference) is primarily used to establish a relationship between the document involved and the external resource, which is a hypertext reference. Point to the location of the network resource where it is used for hyperlinks. Commonly used are: Link,a tags
<link href = "Reset.css" rel = "stylesheet"/>
SRC (source) is simply the location that embeds the current resource into the definition of the current document element, pointing to the location of the external resource. When the browser resolves to the element, it pauses the download and processing of other resources until the resource is loaded, compiled, and executed.
<script src = "script.js" ></script>
Common, img,script,iframe and other labels. That's why we put the JS script at the bottom, not the head.
In short, SRC is used to load external resources, and HREF is used to establish a connection between the current document and the referencing resource.
The difference between Url,href and SRC