Select常用JQuery方法小结：

//获取选中option的value值
$('#select_id').val();
//获取选中option的text值
$('#select_id').find("option:selected").text();
$('#select_id option:selected').text();
//添加option
$('#select_id').html($('#select_id').html()+"<option value='09'>哈哈哈</option>");
$('#select_id').append("<option value='09'>哈哈哈</option>");
//删除全部option
$('#select_id').empty();
$('#select_id').html("");
//删除指定索引的option
$("#select_id option:eq(1)").remove();
//删除指定value的option
$("#select_id option[value='02']").remove();
//删除指定text的option
$("#select_id  option:contains('西安')").remove();