UC知道谁能帮我看一段javascript代码，急急
来源：百度知道 编辑：UC知道 时间：2024/05/27 11:56:06
以下代码的功能是选择下拉列表框中的值，我的文本框中就会跟着显示：<form name="selecttest">
<table width="720" border="0" cellpadding="2" cellspacing="1" class="box" align="center">
<tr>
<td width="200" align="right">Customer ID</td>
<td width="400"><font face="Arial, Helvetica, sans-serif">
<select size="1" name="number" onchange="aaa(this);">
<option selected value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="Add..">Add..</option>
</select></font></td>
</tr>
<tr>
<td></td>
<td><input type="text" value="" name="xianshi&quo
<table width="720" border="0" cellpadding="2" cellspacing="1" class="box" align="center">
<tr>
<td width="200" align="right">Customer ID</td>
<td width="400"><font face="Arial, Helvetica, sans-serif">
<select size="1" name="number" onchange="aaa(this);">
<option selected value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="Add..">Add..</option>
</select></font></td>
</tr>
<tr>
<td></td>
<td><input type="text" value="" name="xianshi&quo
2个问题：1 是selectedIndex而不是selectedindex属性注意大小写 JS敏感
2 dddd未定义
改好了：
<form name="selecttest">
<table width="720" border="0" cellpadding="2" cellspacing="1" class="box" align="center">
<tr>
<td width="200" align="right">Customer ID</td>
<td width="400"><font face="Arial, Helvetica, sans-serif">
<select size="1" name="number" onchange="aaa(this);">
<option selected value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="Add..">Add..</option>
</select></font></td>
</tr>
<tr>
<td></td>
<td><input type="text" value=&quo