这一段 jquery 为什么在IE8时不能执行？在FF里就没有问题。

解决方案 »

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html结构呢，怎么贴一半出来，如何本地重现问题？
A.php是被告调用页面
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<link href="css/xb_css.css" rel="stylesheet" type="text/css">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script language="javascript" src="js/jquery.js"></script>
<script language="javascript">
$(document).ready(function(){
$(".tu>a").each(function(i){
$(this).click(function(){
$("#xb_class1").val($(this).parent("div").parent("div").children("span").html()+","+$(this).html());
});

});
});</script>
</head><body><?php
include_once("conn/conn.php");
$db= new db;
$sql="select * from clas";
$rs=$db->execute($sql);
$maxclass=array();if($db->num($rs)<=0){
echo "没有分类";
exit;
}while($arr=$db->fetch($rs)){
if($arr["xb_upid"]==0){
echo "<div class=\"one\"><span>".$arr["xb_name"]."</span>";
$sql="select * from clas where xb_upid=".$arr["id"];
$rs1=mysql_query($sql);
while($arr1=$db->fetch($rs1)){
   echo "<Div class=\"tu\"><a href='#' title=".$arr["id"].",".$arr1["id"].">".$arr1["xb_name"]."</a></div>";

}

}

echo "</div>";
}?></body>
</html>
b.php主页面
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script type="application/javascript" src="./js/jquery.js"></script>
<link href="css/xb_css.css" rel="stylesheet" type="text/css" />
</head>
<script language="javascript" >
$(document).ready(function(){

$("#class").click(function(){
$.get("./showclass.php",function(data){
$("#show").html(data);
//alert(data);
});
}); });
</script>
<body style="font-size:13px;">
<form action="upfile.php" method="post" enctype="multipart/form-data" name="form1" id="form1">
<table width="640" height="311" border="0" cellpadding="0" cellspacing="0">
  <tr>
    <td width="50" nowrap="nowrap">标题</td>
    <td><label for="xb_title"></label>
      <input name="xb_title" type="text" id="xb_title" size="30" /></td>
    <td width="50"> </td>
  </tr>
  <tr>
    <td width="50" nowrap="nowrap">作者</td>
    <td><input name="xb_author" type="text" id="xb_author" size="30" /></td>
    <td width="50"> </td>
  </tr>
  <tr>
    <td width="50" nowrap="nowrap">大小</td>
    <td><input name="xb_size" type="text" id="xb_size" size="30" /></td>
    <td width="50"> </td>
  </tr>
  <tr>
    <td width="50" nowrap="nowrap">关键字</td>
    <td><input name="xb_key" type="text" id="xb_key" size="30" /></td>
    <td width="50"> </td>
  </tr>
  <tr>
    <td width="50" nowrap="nowrap">图片</td>
    <td><label for="xb_pic"></label>
      <input type="file" name="xb_pic" id="xb_pic" /></td>
    <td width="50"> </td>
  </tr>
  <tr>
    <td width="50" nowrap="nowrap">地址1</td>
    <td><input name="xb_dz1" type="text" id="xb_dz1" size="50" /></td>
    <td width="50"> </td>
  </tr>
  <tr>
    <td width="50" nowrap="nowrap">地址2</td>
    <td><input name="xb_dz2" type="text" id="xb_dz2" size="50" /></td>
    <td width="50"> </td>
  </tr>
  <tr>
    <td width="50" nowrap="nowrap">分类</td>
    <td><label for="textfield2"></label>
      <input name="xb_class" type="text" id="xb_class1" size="50" maxlength="50" />
      <a href="#" id="class">显示分类</a></td>
    <td width="50"> </td>
  </tr>
  <tr>
    <td nowrap="nowrap"> </td>
    <td id="show"></td>
    <td> </td>
  </tr>
  <tr>
    <td nowrap="nowrap">介绍</td>
    <td><textarea name="xb_explain" cols="90" rows="10" id="xb_explain"></textarea></td>
    <td> </td>
  </tr>
  <tr>
    <td width="50" nowrap="nowrap"> </td>
    <td><label for="xb_explain">
      <input type="submit" name="button" id="button" value="提交" />
    </label></td>
    <td width="50"> </td>
  </tr>
</table>
   </form>
</body>
</html>
设置innerHTML里面的js不会运行的，而且你的a.php不要再返回html，body，head这种标签，要不设置容器内容后可能导致当前页面错乱，将a.php的js放到b.php中，改为live动态绑定a.php
<?php
include_once("conn/conn.php");
$db= new db;
$sql="select * from clas";
$rs=$db->execute($sql);
$maxclass=array();

if($db->num($rs)<=0){
    echo "没有分类";
    exit;
    }

while($arr=$db->fetch($rs)){
    if($arr["xb_upid"]==0){
        echo "<div class=\"one\"><span>".$arr["xb_name"]."</span>";
        $sql="select * from clas where xb_upid=".$arr["id"];
        $rs1=mysql_query($sql);
        while($arr1=$db->fetch($rs1)){
           echo "<Div class=\"tu\"><a href='#' title=".$arr["id"].",".$arr1["id"].">".$arr1["xb_name"]."</a></div>";

            }


        }

            echo "</div>";
            }

?>b.php$(document).ready(function(){

$("#class").click(function(){
    $.get("./showclass.php",function(data){
        $("#show").html(data);
        //alert(data);
        });
    });     /////////////////////////不用each遍历绑定了，直接live就好了
$(".tu>a").live('click',function(){$("#xb_class1").val($(this).parent("div").parent("div").children("span").html()+","+$(this).html());});///////////////////

    });