如何使用jquery更新标签标签

Question

我有以下HTML:

<div id="myDiv">
  <table id="tbl0">
    <tr id="tr0" style="display: none;">
      <td>
        <label id="lbl0"></label>
      </td>
    </tr>
    <tr id="tr1" style="display: none;">
      <td>
        <label id="lbl1"></label>
      </td>
    </tr>
    <tr id="tr2" style="display: none;">
      <td>
        <label id="lbl2"></label>
      </td>
    </tr>
  </table>
</div>

以下jquery将行设置为可见,并使用一些文本更新(但失败)label标签.

var myStr = $(this).text();
var myArr = myStr.split(',');

$.each(myArr, function (i) {

  // This part works just fine
  var tr = $('#myDiv').find("#tr" + i);
  tr.css('display', 'inline');

  // The label is found, but I can't get jquery to update the text of
  // ...it no matter what I try
  var lbl = tr.find("lbl" + i);

  lbl.val('hello world'); // doesn't work
  lbl.text('hello world'); // doesn't work
  lbl.html('hello world'); // doesn't work

});

那么我在这里做错了什么？

Answer 1

试试这个...

var lbl = tr.find("#lbl" + i);

您正在尝试选择一个<lbl1/>显然不存在的标记

用于#指定要搜索的ID.