js find child node img and change src

Question

    <a href="$val[description]" class="product_hov">
            <p class="pv">
              <p class="dii" onMouseOver="this.style.backgroundColor='#00755D'"  onMouseOut="this.style.backgroundColor='#DADADA'">

              <img src="$val[imgurl]" alt="$val[title]" title="$val[title]" width="{$lang_imgwidth}" height="{$lang_imgheight}" class="product_img" onMouseOver="change_img_product(this,'$val[imgurls]')" onMouseOut="change_imgs_product(this,'$val[imgurl]')"/>
                    <p class="product_di">
                               <dd clss="product_nm">$val[title]</dd>
                                <p class="product_long">
                                    <font class="product_wz" style="text-align: center;">$val[issue]</font>
                                </p>
                        </p>

            </a>
            

Now the image src is changed when the mouse stays on the img. I want to add the Onmouse attribute directly to the a link. How to find the node of this img and change the src of the img? Thank you

function change_img_product(obj,img){

        
    $(obj).attr("src",img);
}
function change_imgs_product(obj,img){

    $(obj).attr("src",img);
}

Answer 1

$("a").on('mouseover',function () {
    $(this).find('img').src('')
});

Answer 2

You add a class or id to the img tag. When the mouse is on the a tag, you can find the corresponding class or id and find the img. Then switch the img src value

Answer 3

<a hreef="" class="product_hov">
.....
    <img src="初始化图片地址" _src="新图片地址" />
.....
</a> 

$('.product_hov img').on('mouseover',function () {
    var _src = $(this).attr('_src');
    $(this).src(_src);
});

Answer 4

You guys, this is specifically

$("a").hover(function(){
// Go in
$(this).find('img').src('')
},function(){
$(this).find ('img').src('')
//come out
});