jquery操作select option 的代码小结

one
two
three

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

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

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

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

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

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

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