Question

js怎么根据蒜素的下标查询该元素

Answer 1

<div id="main" class=“main">
<div class=“child"></div>
<div class=“child"></div>
<div class=“child"></div>
<div class=“child"></div>
</div>window.onload = function () {
var main = document.getElementById("main");

var divs = main.getElementsByTagName("div");

for (var i = 0; i < divs.length; i++) {
divs[i].indexs = i;
}

}