<!DOCTYPE html>src="//libs.baidu.com/jquery/1.10.2/jquery.min.js"$(document).ready(function(){$("input").keyup(function(){txt=$("input").val();$("span").load("demo_ajax_gethint.php",{suggest:txt});});});在下面的输入框中输入字母:First name:type="text"匹配项:完整 PHP 代码文件 ( href="demo_ajax_gethint.txt" target="_blank"demo_ajax_gethint)