搜索提示&二级菜单-526互联

搜索提示

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8"/>
        <title>搜索提示</title>
    </head>
<body>
    <input id="search" type="text">
    <ul id="result"></ul>

    <script type="module">
        import{getJSON} from '../封装AJAX/封装AJAX3';
        const searchInput = document.getElementById('search');
        const resultList  = document.getElementById('result');

        const url = 'https://www.imooc.com/api/http/search/suggest?wirds=';

        const handlelInnputEcent =() =>{
            if(searchInput.value.trim() !==''){
                    getJSON(`${url}${searchInput.value}`)
                    .then(Response => {
                        console.log(Response);
                        let html="";
                        for(const item of Response.data){
                            html += `<li>${item.word}</li>`;
                        }
                        resultList.innerHTML =  html;
                        resultList.style.display='';
                    })
                    .catch(err => {
                        console.log(er);
                    });
                }else{
                    resultList.innerHTML='';
                    resultList.style.display='none';
                }
            }
          
            let timer = null;
        //IE9开始支持
        searchInput.addEventListener('input',()=>{
            if(timer){
                clearTimeout(timer);
            }
            timer = setTimeout(handlelInnputEcent,300);
        },false);
    </script>
</body>
</html>

二级菜单

二级菜单html

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
        <title>二级菜单</title>
        <link rel="stylesheet" type="text/css" href="css/index.css"/>
    </head>
    <body>
        <div class="menu">
            <ul>
                <li>首页</li>
                <li>博客
                    <ul>
                        <li>博客1</li>
                        <li>博客2</li>
                        <li>博客3</li>
                    </ul>
                </li>
                <!-- 注意：需要将二级菜单的ul放在一级菜单的li标签内 -->
                <li>新闻</li>
                <li>账户</li>
            </ul>
        </div>
    </body>
</html>

index.css

ul li{
    list-style: none;
    /* 清除列表原有样式 */
}
.menu{
    width: 600px;
    height: 60px;
    background-color: aquamarine;
}
.menu ul li{
    float: left;
    /* 使列表(一级菜单)横向 */
    margin-right: 50px;
    margin-top: 20px;
    /* 设置一级菜单内容的位置 */
    position: relative;
}
.menu ul li ul{
    width: 100px;
    height: 160px;
    margin-left: -50px;
    background-color: #7FFFD4;
    display: none;
    /* 设置初始为不显示 */
    position: absolute;
}
.menu ul li:hover ul{
    display: block;
    /* 当一级菜单的li获取hover后将二级菜单的ul显示出来 */
}