下面幾個常用的代碼或許對您有幫助： 代碼如下: //1.獲取選中option值 $('#selectList').val(); //2.獲取選中option的文本 $('#selectList :selected').text(); //3.獲取多個選中option值、文本 var foo = []; $('#multiple :selected').each(function(i, selected) { foo[i] = $(selected).text(); }); // to get the selected values, just use .val() - this returns a string or array foo = $('#multiple :selected').val(); //4.使用選項option的條件表達式 switch ($('#selectList :selected').text()) { case 'First Option': //do something break; case 'Something Else': // do something else break; } //5.刪除某個value=2的option $("#selectList option[value='2']").remove(); //6.從list A 移動option到 list B. // here we have 2 select lists and 2 buttons. If you click the “add” button, // we remove the selected option from select1 and add that same option to select2. // The “remove” button just does things the opposite way around. // Thanks to jQuery's chaining capabilities, what was once a rather tricky undertaking with JS can now be done in 6 lines of code. $().ready(function() { $('#add').click(function() { return !$('#select1 option:selected').appendTo('#select2'); }); $('#remove').click(function() { return !$('#select2 option:selected').appendTo('#select1'); }); });
