Question

我有一个下拉列表，有很多选项。当我选择任何时，我想要那个选项然后它通过JavaScript调用函数。

我使用的代码就在这里

<select name="aa" onchange="report(this.value)"> <--- this is function in .js
<option value="daily">daily</option>
<option value="monthly">monthly</option>
</select>

我想在每天选择时调用函数（每日）反之亦然。

function report(daily)<-- js function {  
  loadXMLDoc('script/d_report.php','responseTag');
  document.getElementById('responseTag').style.visibility='visible';
  document.getElementById('list_report').style.visibility='hidden';
  document.getElementById('formTag').style.visibility='hidden'; 
} 
function report(monthly) {
  document.getElementById('responseTag').style.visibility='visible';
  loadXMLDoc('script/m_report.php','responseTag');
  document.getElementById('list_report').style.visibility='hidden';
  document.getElementById('formTag').style.visibility='hidden';
}

Answer 1

<select name="aa" onchange="report(this.value)"> 
  <option value="">Please select</option>
  <option value="daily">daily</option>
  <option value="monthly">monthly</option>
</select>

使用

function report(period) {
  if (period=="") return; // please select - possibly you want something else here

  var report = "script/"+((period == "daily")?"d":"m")+"_report.php";
  loadXMLDoc(report,'responseTag');
  document.getElementById('responseTag').style.visibility='visible';
  document.getElementById('list_report').style.visibility='hidden';
  document.getElementById('formTag').style.visibility='hidden'; 
}

不引人注目的版本：

<select id="aa" name="aa"> 
  <option value="">Please select</option>
  <option value="daily">daily</option>
  <option value="monthly">monthly</option>
</select>

使用

window.onload=function() {
  document.getElementById("aa").onchange=function() {
    var period = this.value;
    if (period=="") return; // please select - possibly you want something else here

    var report = "script/"+((period == "daily")?"d":"m")+"_report.php";
    loadXMLDoc(report,'responseTag');
    document.getElementById('responseTag').style.visibility='visible';
    document.getElementById('list_report').style.visibility='hidden';
    document.getElementById('formTag').style.visibility='hidden'; 
  } 
}

jQuery版本 - 与ID相同的选择

$(function() {
  $("#aa").on("change",function() {
    var period = this.value;
    if (period=="") return; // please select - possibly you want something else here

    var report = "script/"+((period == "daily")?"d":"m")+"_report.php";
    loadXMLDoc(report,'responseTag');
    $('#responseTag').show();
    $('#list_report').hide();
    $('#formTag').hide(); 
  }); 
});

Answer 2

问候如果我找到了你，你需要一个能够做到这一点的JavaScript函数

function report(v) {
//To Do
  switch(v) {
    case "daily":
      //Do something
      break;
    case "monthly":
      //Do somthing
      break;
    }
  }

此致

Answer 3

<script type="text/javascript">
function report(func)
{
    func();
}

function daily()
{
    alert('daily');
}

function monthly()
{
    alert('monthly');
}
</script>

如何从下拉菜单中选择并调用javascript函数

3 个答案: