我想要给#list里面的第二个div里面的input添加属性该如何添加？

<div class="item">
  <input type="radio" name="item"  title="this is radio checked">
</div>
<div class="item">
  <input type="radio" name="item"  title="this is radio text">
</div>
<div class="item">
  <input type="radio" name="item"  title="this is radio text">
</div>
<div class="item">
  <input type="radio" name="item"  title="this is radio text">
</div>

我想要给#list里面的第二个div里面的input添加属性该如何添加？

$(".item:nth-of-type(2) input").attr("name2","111")

首先没有#list，#是对id的选择符，楼上给的是jq的选择，css的话可以用.item:nth-child(2) input

wrapper{ border:1px solid red; width:190px; } .wrapper input{ outline: none; -webkit-appea

document.getELementById("list").getElementsByTagName("div")[1].getElementsByTagName("input")[0].setAttribute("属性名", "值");