HTML: Image won't display?

问题:

I'm kind of new to HTML. I'm trying to display an image on my website but for some reason, it just shows a blue box with a question mark in it. I've looked everywhere on the internet, but none of the solutions seemed to work for me. I've tried:

<img src="iwojimaflag.jpg"/>

<img src="images/iwojimaflag.jpg"/>

<img src="Applications/MAMP/htdocs/Symfony/src/Acme/WebBundle/Resources/public/images/iwojimaflag.jpg"/>

回答1:

Just to expand niko's answer:

You can reference any image via its URL. No matter where it is, as long as it's accesible you can use it as the src. Example:

Relative location:

<img src="images/image.png">

The image is sought relative to the document's location. If your document is at http://example.com/site/document.html, then your images folder should be on the same directory where your document.html file is.

Absolute location:

<img src="/site/images/image.png">
<img src="http://example.com/site/images/image.png">

or

<img src="http://another-example.com/images/image.png">

In this case, your image will be sought from the document site's root, so, if your document.html is at http://example.com/site/document.html, the root would be at http://example.com/ (or it's respective directory on the server's filesystem, commonly www/). The first two examples are the same, since both point to the same host, Think of the first / as an alias for your server's root. In the second case, the image is located in another host, so you'd have to specify the complete URL of the image.

Regarding /, . and ..:

The / symbol will always return the root of a filesystem or site.

The single point ./ points to the same directory where you are.

And the double point ../ will point to the upper directory, or the one that contains the actual working directory.

So you can build relative routes using them.

Examples given the route http://example.com/dir/one/two/three/ and your calling document being inside three/:

"./pictures/image.png"

or just

"pictures/image.png"

Will try to find a directory named pictures inside http://example.com/dir/one/two/three/.

"../pictures/image.png"

Will try to find a directory named pictures inside http://example.com/dir/one/two/.

"/pictures/image.png"

Will try to find a directory named pictures directly at / or example.com (which are the same), on the same level as directory.

回答2:

Lets look at ways to reference the image.

Back a directory

../

Folder in a directory:

 foldername/

File in a directory

 imagename.jpg

Now, lets combine them with the addresses you specified.

 /Resources/views/Default/index.html
 /Resources/public/images/iwojimaflag.jpg

The first common directory referenced from the html file is three back:

 ../../../

It is in within two folders in that:

 ../../../public/images/

And you've reached the image:

 ../../../public/images/iwojimaflag.jpg

Note: This is assuming you are accessing a page at domain.com/Resources/views/Default/index.html as you specified in your comment.

回答3:

img {
  width: 200px;
}

<img src="https://image.ibb.co/gmmneK/children_593313_340.jpg"/>

<img src="https://image.ibb.co/e0RLzK/entrepreneur_1340649_340.jpg"/>

<img src="https://image.ibb.co/cks4Rz/typing_849806_340.jpg"/>

please see the above code.

回答4:

If you put <img src="iwojimaflag.jpg"/> in html code then place iwojimaflag.jpg and html file in same folder.

If you put <img src="images/iwojimaflag.jpg"/> then you must create "images" folder and put image iwojimaflag.jpg in that folder.

回答5:

I confess to not having read the whole thread. However when I faced a similar issue I found that checking carefully the case of the file name and correcting that in the HTML reference fixed a similar issue. So local preview on Windows worked but when I published to my server (hosted Linux) I had to make sure "mugshot.jpg" was changed to "mugshot.JPG". Part of the problem is the defaults in Windows hiding full file names behind file type indications.

回答6:

I found that skipping the quotation marks "" around the file and location name displayed the image... I am doing this on MacBook....

回答7:

Here are the most common reasons

• Incorrect file paths

• File names are misspelled

• Wrong file extension

• Files are missing

• The read permission has not been set for the image(s)

Note: On *nix systems, consider using the following command to add read permission for an image:

chmod o+r imagedirectoryAddress/imageName.extension

or this command to add read permission for all images:

chmod o+r imagedirectoryAddress/*.extension

If you need more information, refer to this post.