在HTML中使用

You use the src attribute inside the <video></video> tag to tell the browser where your video file is located. It’s a straightforward way to embed a video on a webpage.

Basic Usage of src in HTML Video

To specify a video file, you just need to add the src attribute with the URL of the video file inside the <video></video> tag. Here's a simple example:

<video src="video.mp4" controls></video>

This tells the browser to load the video from video.mp4 and display it with playback controls. The URL can be relative (like in the example) or absolute (e.g., https://example.com/video.mp4).

Supported Video Formats

Not all browsers support the same video formats, so it's important to pick one that’s widely compatible. Commonly supported formats include:

• MP4 (H.264 codec)
• WebM
• Ogg

If you're using a format like .webm, make sure your src points to the correct version:

<video src="video.webm" controls></video>

While the src attribute works fine for a single source, keep in mind that for broader compatibility, many developers use multiple <source> elements instead. But if you only need to support one format, src alone is perfectly fine.

Hosting and File Accessibility

Make sure the video file is properly hosted and accessible via the URL you provide. If the file is not found or access is blocked (due to permissions or CORS issues), the video won’t play.

Common issues to check:

• Is the path correct? (Double-check spelling and case sensitivity.)
• Is the server configured to serve video files with the right MIME types?
• Are there any access restrictions (like authentication) on the video file?

If your video isn’t playing, open the browser’s developer tools and look at the Network tab to see if the file is loading correctly.

Optional Attributes You Might Want to Use

Alongside src, you might want to add a few other attributes to improve user experience:

• controls: Adds play, pause, volume, and seek controls.
• autoplay: Starts the video automatically (may be blocked by browsers).
• muted: Helps autoplay work better by starting the video muted.
• loop: Repeats the video once it ends.

Here’s how they can be used together:

<video src="video.mp4" controls autoplay muted loop></video>

Each of these adds functionality without complicating things too much.

基本上就這些。 Just point the src to your video, make sure it's accessible, and add some basic attributes to control how it behaves.

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