在线客服仿智能回复

原创 2018-11-23 17:40:47 1641
摘要:<!DOCTYPE html> <html> <head>     <meta charset="UTF-8">     <title>智能客服</title>     
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>智能客服</title>
    <style type="text/css">
        .bg {
            width: 450px;
            height: 650px;
            background-color: lightskyblue;
            margin: 10px auto;
            color: #333;
            box-shadow: 2px 2px 2px #808080
        }
        
        h2 {
            text-align: center;
            margin-bottom: -10px;
        }
        .ft{
            width: 400px;
            height: 500px;
            border: 4px double green;
            background-color: #efefef;
            margin: auto;
            margin-top: 20px;
        }
        
        ul {
            list-style: none;
            line-height: 2em;
            /*border: 1px solid red;*/
            overflow: hidden;
            padding: 15px;
        }

        table {
            width: 90%;
            height:80px;
            margin: auto;
        }

        textarea{
            /*width: 300px;*/
            border: none;
            resize: none;
            background-color: lightpink;
            
        }
        button {
            width: 60px;
            height: 40px;
            background-color: seagreen;
            color: white;
            border: none;
            /*text-align: left;*/

        }
        button:hover {
            cursor: pointer;
            background-color: lightyellow;
        }
    </style>
</head>
<body>
    <h2>在线客服</h2>
    <div>
        <div>
            <ul>
                <li></li>
            </ul>
        </div>
        <table>
            <tr>
                <td><textarea name="text" id="" cols="50" rows="8"></textarea></td>
                <td><button type="button" style="color: #000;">发送</button></td>
            </tr>
        </table>
    </div>
    <script>
        let btn = document.getElementsByTagName('button')[0];
        let text = document.getElementsByName('text')[0];
        let list = document.getElementsByTagName('ul')[0];
        let sum = 0;

        //添加按钮点击事件,获取用户数据并推送到对话窗口中
        btn.onclick = function () {
            
            if (text.value.length === 0) {
                alert('输入为空,说点什么再点吧');
                return false;
            }
            let userComment = text.value;

            //立即清空用户信息区
            // text.value = '';

            //创建一个新节点li
            let li = document.createElement('li');
            li.innerHTML = userComment;  //将用户输入的内容添加到新节点中
            let userPic = '<img src="inc/peter.jpg" width="30" style="border-radius:50%">'; // 设置用户头像
            li.innerHTML = userPic + ' ' + userComment; // 将用户头像与用户的聊天内容合并
            list.appendChild(li);   //发送聊天内容,实际上就是将新节点插入到对话列表中
            sum += 1;   // 聊天记录自增1

            //设置定时器,默认2秒后会自动回复
            setTimeout(function(){
            let info = [
                '加微信给哥哥发照片哦',
                '加个QQ吗',
                '在的呢',
                '怎么了嘛',
                '人家没空啦',
                ];
            let temp = info[Math.floor(Math.random()*5)];
            //取1-5之间的一个整数:Math.floor(Math.random()*6 + 1)
            let reply = document.createElement('li');
            let kefuPic = '<img src="inc/zly.jpg" width="30" style="border-radius:50%;">';
            reply.innerHTML = kefuPic + ' ' + '<span style="color:orange">'+temp+'</span>';

            list.appendChild(reply);
            sum += 1;

            },2000);
            
            // 当聊天记录达到10条时清空窗口
            if (sum > 11) {
                list.innerHTML = '';
                sum = 0;
            }
        }

    </script>
</body>
</html>

变量调用和字符串拼接比较懵

批改老师:韦小宝批改时间:2018-11-23 17:48:02
老师总结:嗯!写的很不错!前端就得多找这种案例来进行练习哦!继续加油吧!

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