Javascript: Get background-image URL of <div>

，或许与您遇到的问题类似。

回答者palaѕн给出了该问题的处理方式：

You can try this:

var img = document.getElementById('your_div_id'),
style = img.currentStyle || window.getComputedStyle(img, false),
bi = style.backgroundImage.slice(4, -1).replace(/"/g, "");

// Get the image id, style and the url from it
var img = document.getElementById('testdiv'),
  style = img.currentStyle || window.getComputedStyle(img, false),
  bi = style.backgroundImage.slice(4, -1).replace(/"/g, "");

// Display the url to the user
console.log('Image URL: ' + bi);<div id="testdiv" style="background-image:url('http://placehold.it/200x200');"></div>

Edit:

Based on @Miguel and other comments below, you can try this to remove additional quotation marks if your browser (IE/FF/Chrome...) adds it to the url:

bi = style.backgroundImage.slice(4, -1).replace(/"/g, "");

and if it may includes single quotation, use: replace(/['"]/g, "")

DEMO FIDDLE

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