在线运行代码 - 菜鸟教程

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>自动完成部件（Autocomplete Widget）演示</title>
  <link rel="stylesheet" href="https://apps.bdimg.com/libs/jqueryui/1.10.4/css/jquery-ui.min.css">
  <script src="https://apps.bdimg.com/libs/jquery/1.10.2/jquery.min.js"></script>
  <script src="https://apps.bdimg.com/libs/jqueryui/1.10.4/jquery-ui.min.js"></script>
</head>
<body>
 
<label for="autocomplete">选择一个编程语言：</label>
<input id="autocomplete">
 
<script>
var tags = [ "c++", "java", "php", "coldfusion", "javascript", "asp", "ruby" ];
$( "#autocomplete" ).autocomplete({
  source: function( request, response ) {
          var matcher = new RegExp( "^" + $.ui.autocomplete.escapeRegex( request.term ), "i" );
          response( $.grep( tags, function( item ){
              return matcher.test( item );
          }) );
      }
});
</script>
 
</body>
</html>
源代码

动行结果
