1、获取选中select的value和text,html

onetwothree

通过以下script代码s来获取选中的value和text

$("#mySelect").val(); //获取选中记录的value值$("#mySelect option:selected").text(); //获取选中记录的text值

2、运用new Option("文本","值")方法添加选项option

var obj = document.getElementById("mySelect");obj.add(new Option("4","4"));

3、删除所有选项option

var obj = document.getElementById("mySelect");obj.options.length = 0;

4、删除选中选项option

var obj = document.getElementById("mySelect");var index = obj.selectedIndex;obj.options.remove(index);

5、修改选中选项option

var obj = document.getElementById("mySelect");var index = obj.selectedIndex;obj.options[index] = new Option("three",3); //更改对应的值obj.options[index].selected = true; //保持选中状态

6、删除select

var obj = document.getElementById("mySelect");obj.parentNode.removeChild(obj); //移除当前对象

7、select选择的响应事件

$("#mySelect").change(function(){ //添加所需要执行的操作代码})

1.动态创建select

function createSelect(){var mySelect = document.createElement_x("select");mySelect.id = "mySelect";document.body.appendChild(mySelect);}

2.添加选项option

function addOption(){//根据id查找对象，var obj=document.getElementByIdx_x('mySelect');//添加一个选项obj.add(new Option("文本","值")); //这个只能在IE中有效obj.options.add(new Option("text","value")); //这个兼容IE与firefox}

3.删除所有选项option

function removeAll(){var obj=document.getElementByIdx_x('mySelect');obj.options.length=0;}

4.删除一个选项option

function removeOne(){var obj=document.getElementByIdx_x('mySelect');//index,要删除选项的序号，这里取当前选中选项的序号var index=obj.selectedIndex;obj.options.remove(index);}

5.获得选项option的值

var obj=document.getElementByIdx_x('mySelect');var index=obj.selectedIndex; //序号，取当前选中选项的序号var val = obj.options[index].value;

6.获得选项option的文本

var obj=document.getElementByIdx_x('mySelect');var index=obj.selectedIndex; //序号，取当前选中选项的序号var val = obj.options[index].text;

7.修改选项option

var obj=document.getElementByIdx_x('mySelect');var index=obj.selectedIndex; //序号，取当前选中选项的序号var val = obj.options[index]=new Option("新文本","新值");

8.删除select

function removeSelect(){var mySelect = document.getElementByIdx_x("mySelect");mySelect.parentNode.removeChild(mySelect);}