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This article introduces the relevant knowledge of "how to set the img src value of javascript". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Setting method: 1, using the src attribute of element object, syntax "img element object .src =" attribute value "; 2, using setAttribute () method, syntax" img element object .setAttribute ("src", "attribute value") ".

The operating environment of this tutorial: windows7 system, javascript1.8.5 version, Dell G3 computer.

Javascript sets the img src value

Method 1: use the src attribute of the element object

Click the button to change the content of the img tag.

Try function myFunction () {var img = document.getElementsByTagName ("img") [0]; img.setAttribute ("src", "img/3.jpg");}

Effect picture:

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