0 
here is the code :

   <div class="upload"><br>
  <br>
  <br>
  <input type="hidden" value="" id="SWFUpload_0_3" name="jpg_uploaded_files[]">
  <br>
  <input type="hidden" value="" id="SWFUpload_0_4" name="jpg_uploaded_files[]">
  <br>
  <input type="hidden" value="" id="SWFUpload_0_5" name="jpg_uploaded_files[]">
  <br>
  <input type="hidden" value="" id="SWFUpload_0_6" name="jpg_uploaded_files[]">
  <br>
  <input type="hidden" value="" id="SWFUpload_0_7" name="jpg_uploaded_files[]">
  <br>
  <input type="hidden" value="" id="SWFUpload_0_8" name="jpg_uploaded_files[]">
  <br>
</div>
4

4 回答 4

7

工作演示

尝试这个

 $('.upload input:hidden').length
于 2013-09-24T12:44:36.990 回答
0

尝试将属性等于过滤器与属性一起使用type

var len = $('.upload input[type="hidden"]').length
于 2013-09-24T12:43:21.870 回答
0 
$("input[type='hidden']").length;
于 2013-09-24T12:44:01.650 回答
0

尝试这个

$('.upload').find($("input[type='hidden']")).length

演示

于 2013-09-24T12:46:54.827 回答