获取下拉框中所有文本值或value值

<select id = "myselect">
	<option value = "1">选项一</option>
	<option value = "2">选项二</option>
	<option value = "3">选项三</option>
</select>

$("#myselect option").each(function (){
	$(this).text();  // 获得文本值
	$(this).val();   // 获得value值
 })