Javascript 如何在文本框中显示我选择的dropdownlist值_Javascript_Php_Jquery_Html

Javascript 如何在文本框中显示我选择的dropdownlist值

javascript php jquery html

Javascript 如何在文本框中显示我选择的dropdownlist值,javascript,php,jquery,html,Javascript,Php,Jquery,Html,我有一个代码，用于填充从文本文件到列表框的单词。如果我从列表框中选择了任何值，那么它会在文本框中显示一个选定的单词（在表单中-将该值发布到另一个脚本） javascript代码： <script> function getSelectedValue(theValue){ document.getElementById('pasteTheValue').innerHTML=theValue; } </script> //open the file $rea

我有一个代码，用于填充从文本文件到列表框的单词。如果我从列表框中选择了任何值，那么它会在文本框中显示一个选定的单词（在表单中-将该值发布到另一个脚本）

javascript代码：

<script>
  function getSelectedValue(theValue){
    document.getElementById('pasteTheValue').innerHTML=theValue;
  }
</script>

//open the file
$read_your_file = @fopen($your_file, "r") or die ("Couldn't Access $your_file");

//create a variable to hold the contents of the file
$contents_your_file = fread($read_your_file, filesize($your_file));

//array of file contents
$your_array = explode("\n",$contents_your_file);

//close the file
fclose($read_your_file);

//counts the number elements in the property_categories array
$num_elmnts_array = count($your_array) ;

//elements in the drop down list
//$drop_elmnts = 0;

//begin creating your dropdown menu...

$your_menu = "<select name=\"list\" onchange=\"getSelectedValue(this.value)\">";  
//For loop to begin
for($counter = 0; $counter < $num_elmnts_array; $counter++){
$your_menu .= "<option value=\"$your_array[$counter]\">$your_array[$counter]        </option>";
//$counter++;
}
//end select menu
$your_menu .= "</select>";
?>

<p><b><?php echo "$your_menu"; ?></b><br>
<p id="pasteTheValue"></p>

 function getSelectedValue(theValue){
     document.getElementById('my_textbox').value=theValue; // add this line
    }


函数getSelectedValue（theValue）{
document.getElementById（'pasteTheValue'）。innerHTML=theValue；
}

php代码：

//open the file
$read_your_file = @fopen($your_file, "r") or die ("Couldn't Access $your_file");

//create a variable to hold the contents of the file
$contents_your_file = fread($read_your_file, filesize($your_file));

//array of file contents
$your_array = explode("\n",$contents_your_file);

//close the file
fclose($read_your_file);

//counts the number elements in the property_categories array
$num_elmnts_array = count($your_array) ;

//elements in the drop down list
//$drop_elmnts = 0;

//begin creating your dropdown menu...

$your_menu = "<select name=\"list\" onchange=\"getSelectedValue(this.value)\">";  
//For loop to begin
for($counter = 0; $counter < $num_elmnts_array; $counter++){
$your_menu .= "<option value=\"$your_array[$counter]\">$your_array[$counter]        </option>";
//$counter++;
}
//end select menu
$your_menu .= "</select>";
?>

<p><b><?php echo "$your_menu"; ?></b><br>
<p id="pasteTheValue"></p>

//打开文件
$read_your_file=@fopen（$your_file，“r”）或die（“无法访问$your_文件”）；
//创建一个变量来保存文件的内容
$contents\u your\u file=fread（$read\u your\u file，filesize（$your\u file））；
//文件内容数组
$your\u array=explode（“\n”，$contents\u your\u文件）；
//关闭文件
fclose（$read\u your\u file）；
//统计属性类别数组中的元素数
$num\u elmnts\u array=count（$your\u array）；
//下拉列表中的元素
//$drop_elmnts=0；
//开始创建您的下拉菜单。。。
$your_menu=“”；
//让循环开始
对于（$counter=0；$counter<$num\u elmnts\u数组；$counter++）{
$your_菜单。=“$your_数组[$counter]”；
//$counter++；
}
//结束选择菜单
$您的菜单。=“”；
?>

这个很好用。这将在页面中显示所选单词，与正常文本一样。但我想在文本框中显示（或获取值）。请帮我解决这个问题。

使用id如下的文本框

<input type="text" id="my_textbox" value="" />

更新2:

<script>
  function getSelectedValue(theValue){
    document.getElementById('pasteTheValue').innerHTML=theValue;
  }
</script>

//open the file
$read_your_file = @fopen($your_file, "r") or die ("Couldn't Access $your_file");

//create a variable to hold the contents of the file
$contents_your_file = fread($read_your_file, filesize($your_file));

//array of file contents
$your_array = explode("\n",$contents_your_file);

//close the file
fclose($read_your_file);

//counts the number elements in the property_categories array
$num_elmnts_array = count($your_array) ;

//elements in the drop down list
//$drop_elmnts = 0;

//begin creating your dropdown menu...

$your_menu = "<select name=\"list\" onchange=\"getSelectedValue(this.value)\">";  
//For loop to begin
for($counter = 0; $counter < $num_elmnts_array; $counter++){
$your_menu .= "<option value=\"$your_array[$counter]\">$your_array[$counter]        </option>";
//$counter++;
}
//end select menu
$your_menu .= "</select>";
?>

<p><b><?php echo "$your_menu"; ?></b><br>
<p id="pasteTheValue"></p>

 function getSelectedValue(theValue){
     document.getElementById('my_textbox').value=theValue; // add this line
    }

使用id如下的文本框

<input type="text" id="my_textbox" value="" />

更新2:

<script>
  function getSelectedValue(theValue){
    document.getElementById('pasteTheValue').innerHTML=theValue;
  }
</script>

//open the file
$read_your_file = @fopen($your_file, "r") or die ("Couldn't Access $your_file");

//create a variable to hold the contents of the file
$contents_your_file = fread($read_your_file, filesize($your_file));

//array of file contents
$your_array = explode("\n",$contents_your_file);

//close the file
fclose($read_your_file);

//counts the number elements in the property_categories array
$num_elmnts_array = count($your_array) ;

//elements in the drop down list
//$drop_elmnts = 0;

//begin creating your dropdown menu...

$your_menu = "<select name=\"list\" onchange=\"getSelectedValue(this.value)\">";  
//For loop to begin
for($counter = 0; $counter < $num_elmnts_array; $counter++){
$your_menu .= "<option value=\"$your_array[$counter]\">$your_array[$counter]        </option>";
//$counter++;
}
//end select menu
$your_menu .= "</select>";
?>

<p><b><?php echo "$your_menu"; ?></b><br>
<p id="pasteTheValue"></p>

 function getSelectedValue(theValue){
     document.getElementById('my_textbox').value=theValue; // add this line
    }

使用id如下的文本框

<input type="text" id="my_textbox" value="" />

更新2:

<script>
  function getSelectedValue(theValue){
    document.getElementById('pasteTheValue').innerHTML=theValue;
  }
</script>

//open the file
$read_your_file = @fopen($your_file, "r") or die ("Couldn't Access $your_file");

//create a variable to hold the contents of the file
$contents_your_file = fread($read_your_file, filesize($your_file));

//array of file contents
$your_array = explode("\n",$contents_your_file);

//close the file
fclose($read_your_file);

//counts the number elements in the property_categories array
$num_elmnts_array = count($your_array) ;

//elements in the drop down list
//$drop_elmnts = 0;

//begin creating your dropdown menu...

$your_menu = "<select name=\"list\" onchange=\"getSelectedValue(this.value)\">";  
//For loop to begin
for($counter = 0; $counter < $num_elmnts_array; $counter++){
$your_menu .= "<option value=\"$your_array[$counter]\">$your_array[$counter]        </option>";
//$counter++;
}
//end select menu
$your_menu .= "</select>";
?>

<p><b><?php echo "$your_menu"; ?></b><br>
<p id="pasteTheValue"></p>

 function getSelectedValue(theValue){
     document.getElementById('my_textbox').value=theValue; // add this line
    }

使用id如下的文本框

<input type="text" id="my_textbox" value="" />

更新2:

<script>
  function getSelectedValue(theValue){
    document.getElementById('pasteTheValue').innerHTML=theValue;
  }
</script>

//open the file
$read_your_file = @fopen($your_file, "r") or die ("Couldn't Access $your_file");

//create a variable to hold the contents of the file
$contents_your_file = fread($read_your_file, filesize($your_file));

//array of file contents
$your_array = explode("\n",$contents_your_file);

//close the file
fclose($read_your_file);

//counts the number elements in the property_categories array
$num_elmnts_array = count($your_array) ;

//elements in the drop down list
//$drop_elmnts = 0;

//begin creating your dropdown menu...

$your_menu = "<select name=\"list\" onchange=\"getSelectedValue(this.value)\">";  
//For loop to begin
for($counter = 0; $counter < $num_elmnts_array; $counter++){
$your_menu .= "<option value=\"$your_array[$counter]\">$your_array[$counter]        </option>";
//$counter++;
}
//end select menu
$your_menu .= "</select>";
?>

<p><b><?php echo "$your_menu"; ?></b><br>
<p id="pasteTheValue"></p>

 function getSelectedValue(theValue){
     document.getElementById('my_textbox').value=theValue; // add this line
    }

要获取所选值，需要在JavaScript中使用

.value

，在jQuery中使用

.val（）

使用JavaScript

//open the file
$read_your_file = @fopen($your_file, "r") or die ("Couldn't Access $your_file");

//create a variable to hold the contents of the file
$contents_your_file = fread($read_your_file, filesize($your_file));

//array of file contents
$your_array = explode("\n",$contents_your_file);

//close the file
fclose($read_your_file);

//counts the number elements in the property_categories array
$num_elmnts_array = count($your_array) ;

//elements in the drop down list
//$drop_elmnts = 0;

//begin creating your dropdown menu...

$your_menu = "<select name=\"list\" onchange=\"getSelectedValue(this.value)\">";  
//For loop to begin
for($counter = 0; $counter < $num_elmnts_array; $counter++){
$your_menu .= "<option value=\"$your_array[$counter]\">$your_array[$counter]        </option>";
//$counter++;
}
//end select menu
$your_menu .= "</select>";
?>

<p><b><?php echo "$your_menu"; ?></b><br>
<p id="pasteTheValue"></p>

function getSelectedValue(theValue){
var SelectedValue = theValue.options[theValue.selectedIndex].value;
document.getElementById('pasteTheValue').innerHTML=SelectedValue ;
}

使用jQuery

//open the file
$read_your_file = @fopen($your_file, "r") or die ("Couldn't Access $your_file");

//create a variable to hold the contents of the file
$contents_your_file = fread($read_your_file, filesize($your_file));

//array of file contents
$your_array = explode("\n",$contents_your_file);

//close the file
fclose($read_your_file);

//counts the number elements in the property_categories array
$num_elmnts_array = count($your_array) ;

//elements in the drop down list
//$drop_elmnts = 0;

//begin creating your dropdown menu...

$your_menu = "<select name=\"list\" onchange=\"getSelectedValue(this.value)\">";  
//For loop to begin
for($counter = 0; $counter < $num_elmnts_array; $counter++){
$your_menu .= "<option value=\"$your_array[$counter]\">$your_array[$counter]        </option>";
//$counter++;
}
//end select menu
$your_menu .= "</select>";
?>

<p><b><?php echo "$your_menu"; ?></b><br>
<p id="pasteTheValue"></p>

$('select').change(function () {
var SelectedValue = $('select').val();
$('#pasteTheValue').innerHTML = SelectedValue;
}

来源：

这里有一个完整的教程，介绍如何使用JavaScript中的

.value

和jQuery中的

.val（）

获取所选值

使用JavaScript

//open the file
$read_your_file = @fopen($your_file, "r") or die ("Couldn't Access $your_file");

//create a variable to hold the contents of the file
$contents_your_file = fread($read_your_file, filesize($your_file));

//array of file contents
$your_array = explode("\n",$contents_your_file);

//close the file
fclose($read_your_file);

//counts the number elements in the property_categories array
$num_elmnts_array = count($your_array) ;

//elements in the drop down list
//$drop_elmnts = 0;

//begin creating your dropdown menu...

$your_menu = "<select name=\"list\" onchange=\"getSelectedValue(this.value)\">";  
//For loop to begin
for($counter = 0; $counter < $num_elmnts_array; $counter++){
$your_menu .= "<option value=\"$your_array[$counter]\">$your_array[$counter]        </option>";
//$counter++;
}
//end select menu
$your_menu .= "</select>";
?>

<p><b><?php echo "$your_menu"; ?></b><br>
<p id="pasteTheValue"></p>

function getSelectedValue(theValue){
var SelectedValue = theValue.options[theValue.selectedIndex].value;
document.getElementById('pasteTheValue').innerHTML=SelectedValue ;
}

使用jQuery

//open the file
$read_your_file = @fopen($your_file, "r") or die ("Couldn't Access $your_file");

//create a variable to hold the contents of the file
$contents_your_file = fread($read_your_file, filesize($your_file));

//array of file contents
$your_array = explode("\n",$contents_your_file);

//close the file
fclose($read_your_file);

//counts the number elements in the property_categories array
$num_elmnts_array = count($your_array) ;

//elements in the drop down list
//$drop_elmnts = 0;

//begin creating your dropdown menu...

$your_menu = "<select name=\"list\" onchange=\"getSelectedValue(this.value)\">";  
//For loop to begin
for($counter = 0; $counter < $num_elmnts_array; $counter++){
$your_menu .= "<option value=\"$your_array[$counter]\">$your_array[$counter]        </option>";
//$counter++;
}
//end select menu
$your_menu .= "</select>";
?>

<p><b><?php echo "$your_menu"; ?></b><br>
<p id="pasteTheValue"></p>

$('select').change(function () {
var SelectedValue = $('select').val();
$('#pasteTheValue').innerHTML = SelectedValue;
}

来源：

这里有一个完整的教程，介绍如何使用JavaScript中的

.value

和jQuery中的

.val（）

获取所选值

使用JavaScript

//open the file
$read_your_file = @fopen($your_file, "r") or die ("Couldn't Access $your_file");

//create a variable to hold the contents of the file
$contents_your_file = fread($read_your_file, filesize($your_file));

//array of file contents
$your_array = explode("\n",$contents_your_file);

//close the file
fclose($read_your_file);

//counts the number elements in the property_categories array
$num_elmnts_array = count($your_array) ;

//elements in the drop down list
//$drop_elmnts = 0;

//begin creating your dropdown menu...

$your_menu = "<select name=\"list\" onchange=\"getSelectedValue(this.value)\">";  
//For loop to begin
for($counter = 0; $counter < $num_elmnts_array; $counter++){
$your_menu .= "<option value=\"$your_array[$counter]\">$your_array[$counter]        </option>";
//$counter++;
}
//end select menu
$your_menu .= "</select>";
?>

<p><b><?php echo "$your_menu"; ?></b><br>
<p id="pasteTheValue"></p>

function getSelectedValue(theValue){
var SelectedValue = theValue.options[theValue.selectedIndex].value;
document.getElementById('pasteTheValue').innerHTML=SelectedValue ;
}

使用jQuery

//open the file
$read_your_file = @fopen($your_file, "r") or die ("Couldn't Access $your_file");

//create a variable to hold the contents of the file
$contents_your_file = fread($read_your_file, filesize($your_file));

//array of file contents
$your_array = explode("\n",$contents_your_file);

//close the file
fclose($read_your_file);

//counts the number elements in the property_categories array
$num_elmnts_array = count($your_array) ;

//elements in the drop down list
//$drop_elmnts = 0;

//begin creating your dropdown menu...

$your_menu = "<select name=\"list\" onchange=\"getSelectedValue(this.value)\">";  
//For loop to begin
for($counter = 0; $counter < $num_elmnts_array; $counter++){
$your_menu .= "<option value=\"$your_array[$counter]\">$your_array[$counter]        </option>";
//$counter++;
}
//end select menu
$your_menu .= "</select>";
?>

<p><b><?php echo "$your_menu"; ?></b><br>
<p id="pasteTheValue"></p>

$('select').change(function () {
var SelectedValue = $('select').val();
$('#pasteTheValue').innerHTML = SelectedValue;
}

来源：

这里有一个完整的教程，介绍如何使用JavaScript中的

.value

和jQuery中的

.val（）

获取所选值

使用JavaScript

//open the file
$read_your_file = @fopen($your_file, "r") or die ("Couldn't Access $your_file");

//create a variable to hold the contents of the file
$contents_your_file = fread($read_your_file, filesize($your_file));

//array of file contents
$your_array = explode("\n",$contents_your_file);

//close the file
fclose($read_your_file);

//counts the number elements in the property_categories array
$num_elmnts_array = count($your_array) ;

//elements in the drop down list
//$drop_elmnts = 0;

//begin creating your dropdown menu...

$your_menu = "<select name=\"list\" onchange=\"getSelectedValue(this.value)\">";  
//For loop to begin
for($counter = 0; $counter < $num_elmnts_array; $counter++){
$your_menu .= "<option value=\"$your_array[$counter]\">$your_array[$counter]        </option>";
//$counter++;
}
//end select menu
$your_menu .= "</select>";
?>

<p><b><?php echo "$your_menu"; ?></b><br>
<p id="pasteTheValue"></p>

function getSelectedValue(theValue){
var SelectedValue = theValue.options[theValue.selectedIndex].value;
document.getElementById('pasteTheValue').innerHTML=SelectedValue ;
}

使用jQuery

//open the file
$read_your_file = @fopen($your_file, "r") or die ("Couldn't Access $your_file");

//create a variable to hold the contents of the file
$contents_your_file = fread($read_your_file, filesize($your_file));

//array of file contents
$your_array = explode("\n",$contents_your_file);

//close the file
fclose($read_your_file);

//counts the number elements in the property_categories array
$num_elmnts_array = count($your_array) ;

//elements in the drop down list
//$drop_elmnts = 0;

//begin creating your dropdown menu...

$your_menu = "<select name=\"list\" onchange=\"getSelectedValue(this.value)\">";  
//For loop to begin
for($counter = 0; $counter < $num_elmnts_array; $counter++){
$your_menu .= "<option value=\"$your_array[$counter]\">$your_array[$counter]        </option>";
//$counter++;
}
//end select menu
$your_menu .= "</select>";
?>

<p><b><?php echo "$your_menu"; ?></b><br>
<p id="pasteTheValue"></p>

$('select').change(function () {
var SelectedValue = $('select').val();
$('#pasteTheValue').innerHTML = SelectedValue;
}

来源：

这里有一个完整的教程，介绍如何将下拉列表元素id视为myDropDown。

//open the file
$read_your_file = @fopen($your_file, "r") or die ("Couldn't Access $your_file");

//create a variable to hold the contents of the file
$contents_your_file = fread($read_your_file, filesize($your_file));

//array of file contents
$your_array = explode("\n",$contents_your_file);

//close the file
fclose($read_your_file);

//counts the number elements in the property_categories array
$num_elmnts_array = count($your_array) ;

//elements in the drop down list
//$drop_elmnts = 0;

//begin creating your dropdown menu...

$your_menu = "<select name=\"list\" onchange=\"getSelectedValue(this.value)\">";  
//For loop to begin
for($counter = 0; $counter < $num_elmnts_array; $counter++){
$your_menu .= "<option value=\"$your_array[$counter]\">$your_array[$counter]        </option>";
//$counter++;
}
//end select menu
$your_menu .= "</select>";
?>

<p><b><?php echo "$your_menu"; ?></b><br>
<p id="pasteTheValue"></p>

现在，您的任务可以按如下所示完成：

$("#myDropDown").change(function(){
   var selectedValue = $(this).val();
   $("#pasteTheValue").val(selectedValue);
});

将下拉列表元素id视为myDropDown。

//open the file
$read_your_file = @fopen($your_file, "r") or die ("Couldn't Access $your_file");

//create a variable to hold the contents of the file
$contents_your_file = fread($read_your_file, filesize($your_file));

//array of file contents
$your_array = explode("\n",$contents_your_file);

//close the file
fclose($read_your_file);

//counts the number elements in the property_categories array
$num_elmnts_array = count($your_array) ;

//elements in the drop down list
//$drop_elmnts = 0;

//begin creating your dropdown menu...

$your_menu = "<select name=\"list\" onchange=\"getSelectedValue(this.value)\">";  
//For loop to begin
for($counter = 0; $counter < $num_elmnts_array; $counter++){
$your_menu .= "<option value=\"$your_array[$counter]\">$your_array[$counter]        </option>";
//$counter++;
}
//end select menu
$your_menu .= "</select>";
?>

<p><b><?php echo "$your_menu"; ?></b><br>
<p id="pasteTheValue"></p>

现在，您的任务可以按如下所示完成：

$("#myDropDown").change(function(){
   var selectedValue = $(this).val();
   $("#pasteTheValue").val(selectedValue);
});

将下拉列表元素id视为myDropDown。

//open the file
$read_your_file = @fopen($your_file, "r") or die ("Couldn't Access $your_file");

//create a variable to hold the contents of the file
$contents_your_file = fread($read_your_file, filesize($your_file));

//array of file contents
$your_array = explode("\n",$contents_your_file);

//close the file
fclose($read_your_file);

//counts the number elements in the property_categories array
$num_elmnts_array = count($your_array) ;

//elements in the drop down list
//$drop_elmnts = 0;

//begin creating your dropdown menu...

$your_menu = "<select name=\"list\" onchange=\"getSelectedValue(this.value)\">";  
//For loop to begin
for($counter = 0; $counter < $num_elmnts_array; $counter++){
$your_menu .= "<option value=\"$your_array[$counter]\">$your_array[$counter]        </option>";
//$counter++;
}
//end select menu
$your_menu .= "</select>";
?>

<p><b><?php echo "$your_menu"; ?></b><br>
<p id="pasteTheValue"></p>

现在，您的任务可以按如下所示完成：

$("#myDropDown").change(function(){
   var selectedValue = $(this).val();
   $("#pasteTheValue").val(selectedValue);
});

将下拉列表元素id视为myDropDown。

//open the file
$read_your_file = @fopen($your_file, "r") or die ("Couldn't Access $your_file");

//create a variable to hold the contents of the file
$contents_your_file = fread($read_your_file, filesize($your_file));

//array of file contents
$your_array = explode("\n",$contents_your_file);

//close the file
fclose($read_your_file);

//counts the number elements in the property_categories array
$num_elmnts_array = count($your_array) ;

//elements in the drop down list
//$drop_elmnts = 0;

//begin creating your dropdown menu...

$your_menu = "<select name=\"list\" onchange=\"getSelectedValue(this.value)\">";  
//For loop to begin
for($counter = 0; $counter < $num_elmnts_array; $counter++){
$your_menu .= "<option value=\"$your_array[$counter]\">$your_array[$counter]        </option>";
//$counter++;
}
//end select menu
$your_menu .= "</select>";
?>

<p><b><?php echo "$your_menu"; ?></b><br>
<p id="pasteTheValue"></p>

现在，您的任务可以按如下所示完成：

$("#myDropDown").change(function(){
   var selectedValue = $(this).val();
   $("#pasteTheValue").val(selectedValue);
});

希望会有所帮助

$(document).ready(function(){
    $('select').change(function(){
       alert($(this).val()); 
    });
});

希望会有所帮助

$(document).ready(function(){
    $('select').change(function(){
       alert($(this).val()); 
    });
});

希望会有所帮助

$(document).ready(function(){
    $('select').change(function(){
       alert($(this).val()); 
    });
});

希望会有所帮助

$(document).ready(function(){
    $('select').change(function(){
       alert($(this).val()); 
    });
});

这个jsbin应该对你有帮助


清单1
清单2
清单3
清单4
已选择功能显示（thisObj）
{
document.getElementById（'show'）。value=thisObj.options[thisObj.selectedIndex]。文本；
}

如果您可以使用jquery，那么它应该会更简单

这个jsbin应该会帮助您


清单1
清单2
清单3
清单4
已选择功能显示（thisObj）
{
document.getElementById（'show'）。value=thisObj.options[thisObj.selectedIndex]。文本；
}

如果您可以使用jquery，那么它应该会更简单

这个jsbin应该会帮助您


清单1
清单2
清单3
清单4
已选择功能显示（thisObj）
{
document.getElementById（'show'）。value=thisObj.options[thisObj.selectedIndex]。文本；
}

如果您可以使用jquery，那么它应该会更简单

这个jsbin应该会帮助您


清单1
清单2
清单3
清单4
已选择功能显示（thisObj）
{
document.getElementById（'show'）。value=thisObj.options[thisObj.selectedIndex]。文本；
}

如果您可以使用jquery，那么将所选值从

列表框插入到p
标记中应该会更加容易，如果您想在文本框内插入该值，请使用此代码-
<input type="text" id="textboxid" value="" />

您正在将所选值从列表框
插入到p
标记中，如果要将该值插入文本框
中，请使用此代码-
<input type="text" id="textboxid" value="" />

您正在将所选值从列表框
插入到p
标记中，如果要将该值插入文本框
中，请使用此代码-
<input type="text" id="textboxid" value="" />

您正在将所选值从列表框
插入到p
标记中，如果要将该值插入文本框
中，请使用此代码-
<input type="text" id="textboxid" value="" />

试试这个
$(document).ready(function(){
    document.getElementByID('listID').on('change',function(){
        var list  = document.getElementByID('listID');
        var indx = list.selectedIndex;
        document.getElementByID('otherFieldID').val(list[indx].text);
    });
});

试试这个
$(document).ready(function(){
    document.getElementByID('listID').on('change',function(){
        var list  = document.getElementByID('listID');
        var indx = list.selectedIndex;
        document.getElementByID('otherFieldID').val(list[indx].text);
    });
});

试试这个
$(document).ready(function(){
    document.getElementByID('listID').on('change',function(){
        var list  = document.getElementByID('listID');
        var indx = list.selectedIndex;
        document.getElementByID('otherFieldID').val(list[indx].text);
    });
});

试试这个
$(document).ready(function(){
    document.getElementByID('listID').on('change',function(){
        var list  = document.getElementByID('listID');
        var indx = list.selectedIndex;
        document.getElementByID('otherFieldID').val(list[indx].text);
    });
});

你想用jquery迭代你的选项吗，你能解释一下吗…@prabu试着用file_get_content代替fread你的文本框在代码中的什么位置？你想用jquery迭代你的选项吗，你能解释更多吗？…@prabu尝试用file_get_内容代替freadu在代码中的文本框在哪里？你想用jquery迭代你的选项吗？你能解释更多吗？…@prabu尝试用file_get_内容代替freadu在代码中的文本框在哪里？你想用jquery迭代你的选项吗，你能解释一下吗…@prabu试着用file_get_content代替freadu代码中的文本框在哪里？与我的答案有什么不同吗？没有，伙计，我在回答时没有检查任何答案：）与我的答案有什么不同吗？没有，伙计，我在回答时没有检查任何答案：）与m有什么不同吗