@xunuo 2018-08-13T15:49:33.000000Z 字数 2356 阅读 973
Wikipedia Entrance

前端
题目链接
功能: 我可以在一个搜索框搜索维基百科的条目，并看到输出结果。
功能: 我可以点击一个按钮就看到一个随机的维基百科条目。
<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" type="text/css" rel="stylesheet">
        <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js" type="text/javascript"></script>
        <script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js" type="text/javascript"></script>
        <title></title>
        <style>
            body {
                background-color: #092B40;
            }
            h1 {
                text-align: center;
                color: #FFFFFF;
            }
            a {
                margin-left: 43%;
                text-align: center;
            }
            .input-group-design {
                margin: 50px 30%;
                font-size: 16px;
            }
            #result ul {
                list-style: none;
                padding: 0;
            }
            #result li {
                color: black;
                font-weight: 300px;
                padding-left: 6px;
            }
            #result li a {
                padding: 16px 16px 2px 24px;
                margin: 20px 200px;
                font-weight: bold;
                display: block;
                background-color: #E6E6E6;
            }
        </style>
    </head>
    <body>
        <h1>Wikipedia Entrance</h1>
        <a href="http://en.wikipedia.org/wiki/Special:Random">Click Here For A Random Wikipedia Page</a>
        <div class="input-group-design">
            <div class="input-group">
                <input id="input-text" type="text" class="form-control">
                <span class="input-group-btn">
        <button id="search-btn" class="btn btn-default">GO</button>
      </span>
            </div>
        </div>
        <div>
            <selection id="result">
            </selection>
        </div>
        <script type="text/javascript">
            var paraJack = {
                wikiItemBaseUrl: 'https://en.wikipedia.org/wiki/',
                resultNum: 12 /*总共展示12条数据*/
            }
            $('#search-btn').click(function() { /*点击GO按钮时*/
				var searchStr = document.getElementById('input-text').value; /*取输入框中的值*/
				console.log(searchStr);
				$.getJSON('https://en.wikipedia.org/w/api.php?action=query&titles=' +
                    encodeURIComponent(searchStr) + '&action=query&format=json&list=search&srsearch=' +
                    encodeURIComponent(searchStr) + '&srlimit=' + paraJack.resultNum + '&srprop=snippet&callback=?',
                    function(data) {
                        genResultDom(paraJack.resultNum);
                        var $anchors = $('#result a');
                        $.each(data.query.search, function(index, val) {
                            var $theAnchor = $anchors.eq(index),
                                $p = $theAnchor.find('p'),
                                $h3 = $theAnchor.find('h3'),
                                title = val.title, //结果项标题
                                snippet = val.snippet; //结果项内容提要
                            $h3.html(title);
							$p.html(snippet);
                            $theAnchor.attr({
								href: paraJack.wikiItemBaseUrl + title
								//用结果项标题生成URL
							});
						});
						$('#result').show(); //显示结果
                    });
            });
            function genResultDom(resultNum) {
                if(typeof resultNum === 'number') {
                    var $result = $('#result'),
                        $ul = $result.html('<ul></ul>').find('ul');
                    for(var i = 0; i < resultNum; i++) {
                        $ul.append($('<li><a href="" target="_blank"><h3></h3><p></p></a></li>'));
                    }
                }
            }
        </script>
    </body>
</html>
Wikipedia Entrance

内容目录
