js實現聯想搜尋__JavaScript

功能：根據關鍵字聯想搜尋出結果後，根據關鍵字的變化，即時出現結果，類似於百度搜尋的功能

1、delegate的用法，專門用在子項目上綁定的事件 delegate("p", "click", function() {    }

2  、key up key down 事件 可以用 

$(".input").on('input', function(e) {}

$("#searchres").delegate("p", "click", function() {$("#searchText").val($(this).text());});$("#searchText").keyup(function(e) {var key = e.keyCode;if ((key >= 48 & key <= 57) || key == 8) {var val = $.trim($(this).val());if ("" == val) {alert("輸入內容不可為空")} else {$.ajax({type : "POST",url : "GoodsServlet",data : {"type" : "key","value" : val},success : function(msg) {if ("無結果" == msg) {$("#searchres").html("<p>" + msg + "</p>");} else {var obj = eval("(" + msg + ")");var str = "";for (var i = 0; i < obj.length; i++) {str = str + "<p>" + obj[i].gid + "</p>";    }$("#searchres").html(str);}}});}}});