这个程序是利用php+ajax+jquery 实现的一个仿baidu智能提示的效果，有须要的朋友能够下载測试哦。

代码例如以下

index.html文件，保保存成index.htm

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<title>Ajax Auto Suggest</title>

<script type="text/javascript" src="jquery-1.2.1.pack.js"></script>

<script type="text/javascript">

 function lookup(inputString) {

  if(inputString.length == 0) {

   // Hide the suggestion box.

   $('#suggestions').hide();

  } else {

   $.post("rpc.php", {queryString: ""+inputString+""}, function(data){

    if(data.length >0) {

     $('#suggestions').show();

     $('#autoSuggestionsList').html(data);

    }

   });

  }

 } // lookup

 function fill(thisValue) {

  $('#inputString').val(thisValue);

  setTimeout("$('#suggestions').hide();", 200);

 }

</script>

<style type="text/css">

 body {

  font-family: Helvetica;

  font-size: 11px;

  color: #000;

 }

 h3 {

  margin: 0px;

  padding: 0px;

 }

 .suggestionsBox {

  position: relative;

  left: 30px;

  margin: 10px 0px 0px 0px;

  width: 200px;

  background-color: #212427;

  -moz-border-radius: 7px;

  -webkit-border-radius: 7px;

  border: 2px solid #000;

  color: #fff;

 }

 .suggestionList {

  margin: 0px;

  padding: 0px;

 }

 .suggestionList li {

  margin: 0px 0px 3px 0px;

  padding: 3px;

  cursor: pointer;

 }

 .suggestionList li:hover {

  background-color: #659CD8;

 }

</style>

</head>

<body>

 <div>

  <form>

   <div>

    Type your county:

    <br />

    <input type="text" size="30" value="" id="inputString" onkeyup="lookup(this.value);" onblur="fill();" />

   </div>

   <div class="suggestionsBox" id="suggestions" style="display: none;">

    <img src="upArrow.png" style="position: relative; top: -12px; left: 30px;" alt="upArrow" />

    <div class="suggestionList" id="autoSuggestionsList">

      

    </div>

   </div>

  </form>

 </div>

</body>

</html>

php文件

<?php

header('content-type:text/html;charset=utf-8');

mysql_connect('localhost', 'root' ,'');

mysql_select_db("test");

mysql_query("set names utf8");

$queryString = $_POST['queryString'];

if(strlen($queryString) >0) {

$sql= "SELECT value FROM countries WHERE value LIKE '".$queryString."%' LIMIT 10";

$query = mysql_query($sql);

	while ($result = mysql_fetch_array($query,MYSQL_BOTH)){

	 $value=$result['value'];

	 ?>

	 <li onClick="fill('<?=$value?>')"><?

=$value?></li>

	 <?php

	}

}

?>

sql.sql把这里复制保存到你的数据库教程

CREATE TABLE IF NOT EXISTS `countries` (

  `id` int(6) NOT NULL auto_increment,

  `value` varchar(250) NOT NULL default '',

  PRIMARY KEY  (`id`)

) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=243 ;

--

-- 转存表中的数据 `countries`

--

INSERT INTO `countries` (`id`, `value`) VALUES

(1, 'Afghanistan'),

(2, 'Aringland Islands'),

(3, 'Albania'),

(4, 'Algeria'),

(5, 'American Samoa'),

(6, 'Andorra'),

(7, 'Angola'),

(8, 'Anguilla'),

(9, 'Antarctica'),

(10, 'Antigua and Barbuda'),

(11, 'Argentina'),

(12, 'Armenia'),

(13, 'Aruba'),

(14, 'Australia'),

(15, 'Austria'),

(16, 'Azerbaijan'),

(17, 'Bahamas'),

(18, 'Bahrain'),

(19, 'Bangladesh'),

(20, 'Barbados'),

(21, 'Belarus'),

(22, 'Belgium'),

(23, 'Belize'),

(24, 'Benin'),

(25, 'Bermuda'),

(26, 'Bhutan'),

(27, 'Bolivia'),

(28, 'Bosnia and Herzegovina'),

(29, 'Botswana'),

(30, 'Bouvet Island'),

(31, 'Brazil'),

(32, 'British Indian Ocean territory'),

(33, 'Brunei Darussalam'),

(34, 'Bulgaria'),

(35, 'Burkina Faso'),

(36, 'Burundi'),

(37, 'Cambodia'),

(38, 'Cameroon'),

(39, 'Canada'),

(40, 'Cape Verde'),

(41, 'Cayman Islands'),

(42, 'Central African Republic'),

(43, 'Chad'),

(44, 'Chile'),

(45, 'China'),

(46, 'Christmas Island'),

(47, 'Cocos (Keeling) Islands'),

(48, 'Colombia'),

(49, 'Comoros'),

(50, 'Congo'),

(51, 'Congo'),

(52, ' Democratic Republic'),

(53, 'Cook Islands'),

(54, 'Costa Rica'),

(55, 'Ivory Coast (Ivory Coast)'),

(56, 'Croatia (Hrvatska)'),

(57, 'Cuba'),

(58, 'Cyprus'),

(59, 'Czech Republic'),

(60, 'Denmark'),

(61, 'Djibouti'),

(62, 'Dominica'),

(63, 'Dominican Republic'),

(64, 'East Timor'),

(65, 'Ecuador'),

(66, 'Egypt'),

(67, 'El Salvador'),

(68, 'Equatorial Guinea'),

(69, 'Eritrea'),

(70, 'Estonia'),

(71, 'Ethiopia'),

(72, 'Falkland Islands'),

(73, 'Faroe Islands'),

(74, 'Fiji'),

(75, 'Finland'),

(76, 'France'),

(77, 'French Guiana'),

(78, 'French Polynesia'),

(79, 'French Southern Territories'),

(80, 'Gabon'),

(81, 'Gambia'),

(82, 'Georgia'),

(83, 'Germany'),

(84, 'Ghana'),

(85, 'Gibraltar'),

(86, 'Greece'),

(87, 'Greenland'),

(88, 'Grenada'),

(89, 'Guadeloupe'),

(90, 'Guam'),

(91, 'Guatemala'),

(92, 'Guinea'),

(93, 'Guinea-Bissau'),

(94, 'Guyana'),

(95, 'Haiti'),

(96, 'Heard and McDonald Islands'),

(97, 'Honduras'),

(98, 'Hong Kong'),

(99, 'Hungary'),

(100, 'Iceland'),

(101, 'India'),

(102, 'Indonesia'),

(103, 'Iran'),

(104, 'Iraq'),

(105, 'Ireland'),

(106, 'Israel'),

(107, 'Italy'),

(108, 'Jamaica'),

(109, 'Japan'),

(110, 'Jordan'),

(111, 'Kazakhstan'),

(112, 'Kenya'),

(113, 'Kiribati'),

(114, 'Korea (north)'),

(115, 'Korea (south)'),

(116, 'Kuwait'),

(117, 'Kyrgyzstan'),

(118, 'Lao People''s Democratic Republic'),

(119, 'Latvia'),

(120, 'Lebanon'),

(121, 'Lesotho'),

(122, 'Liberia'),

(123, 'Libyan Arab Jamahiriya'),

(124, 'Liechtenstein'),

(125, 'Lithuania'),

(126, 'Luxembourg'),

(127, 'Macao'),

(128, 'Macedonia'),

(129, 'Madagascar'),

(130, 'Malawi'),

(131, 'Malaysia'),

(132, 'Maldives'),

(133, 'Mali'),

(134, 'Malta'),

(135, 'Marshall Islands'),

(136, 'Martinique'),

(137, 'Mauritania'),

(138, 'Mauritius'),

(139, 'Mayotte'),

(140, 'Mexico'),

(141, 'Micronesia'),

(142, 'Moldova'),

(143, 'Monaco'),

(144, 'Mongolia'),

(145, 'Montserrat'),

(146, 'Morocco'),

(147, 'Mozambique'),

(148, 'Myanmar'),

(149, 'Namibia'),

(150, 'Nauru'),

(151, 'Nepal'),

(152, 'Netherlands'),

(153, 'Netherlands Antilles'),

(154, 'New Caledonia'),

(155, 'New Zealand'),

(156, 'Nicaragua'),

(157, 'Niger'),

(158, 'Nigeria'),

(159, 'Niue'),

(160, 'Norfolk Island'),

(161, 'Northern Mariana Islands'),

(162, 'Norway'),

(163, 'Oman'),

(164, 'Pakistan'),

(165, 'Palau'),

(166, 'Palestinian Territories'),

(167, 'Panama'),

(168, 'Papua New Guinea'),

(169, 'Paraguay'),

(170, 'Peru'),

(171, 'Philippines'),

(172, 'Pitcairn'),

(173, 'Poland'),

(174, 'Portugal'),

(175, 'Puerto Rico'),

(176, 'Qatar'),

(177, 'Runion'),

(178, 'Romania'),

(179, 'Russian Federation'),

(180, 'Rwanda'),

(181, 'Saint Helena'),

(182, 'Saint Kitts and Nevis'),

(183, 'Saint Lucia'),

(184, 'Saint Pierre and Miquelon'),

(185, 'Saint Vincent and the Grenadines'),

(186, 'Samoa'),

(187, 'San Marino'),

(188, 'Sao Tome and Principe'),

(189, 'Saudi Arabia'),

(190, 'Senegal'),

(191, 'Serbia and Montenegro'),

(192, 'Seychelles'),

(193, 'Sierra Leone'),

(194, 'Singapore'),

(195, 'Slovakia'),

(196, 'Slovenia'),

(197, 'Solomon Islands'),

(198, 'Somalia'),

(199, 'South Africa'),

(200, 'South Georgia and the South Sandwich Islands'),

(201, 'Spain'),

(202, 'Sri Lanka'),

(203, 'Sudan'),

(204, 'Suriname'),

(205, 'Svalbard and Jan Mayen Islands'),

(206, 'Swaziland'),

(207, 'Sweden'),

(208, 'Switzerland'),

(209, 'Syria'),

(210, 'Taiwan'),

(211, 'Tajikistan'),

(212, 'Tanzania'),

(213, 'Thailand'),

(214, 'Togo'),

(215, 'Tokelau'),

(216, 'Tonga'),

(217, 'Trinidad and Tobago'),

(218, 'Tunisia'),

(219, 'Turkey'),

(220, 'Turkmenistan'),

(221, 'Turks and Caicos Islands'),

(222, 'Tuvalu'),

(223, 'Uganda'),

(224, 'Ukraine'),

(225, 'United Arab Emirates'),

(226, 'United Kingdom'),

(227, 'United States of America'),

(228, 'Uruguay'),

(229, 'Uzbekistan'),

(230, 'Vanuatu'),

(231, 'Vatican City'),

(232, 'Venezuela'),

(233, 'Vietnam'),

(234, 'Virgin Islands (British)'),

(235, 'Virgin Islands (US)'),

(236, 'Wallis and Futuna Islands'),

(237, 'Western Sahara'),

(238, 'Yemen'),

(239, 'Zaire'),

(240, 'Zambia'),

(241, 'Zimbabwe');

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