jQuery实现得评论模块

本模块可用于评论或留言，输入区模仿畅言，内容显示使用时间轴，以下是示例图。

评论实例效果

实现代码如下：

index.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <link rel="stylesheet" href="css/publish_comment.css">
</head>

<body>
    <div class="comment-box">
        <div class="input-box">
            <div class="input-box-head">
                <img class="user-photo" src="images/photo.jpg">
            </div>
            <div class="input-box-main">
                <div class="box-border-l"></div>
                <div class="box-border-r"></div>
                <div class="box-top"></div>
                <div class="box-main">
                    <div class="input-region">
                        <textarea class="input-text-area" name="comment_input" placeholder="有事没事说两句..."></textarea>
                    </div>
                </div>
                <div class="pub-area">
                    <div class="pub-btn"></div>
                </div>
            </div>

        </div>
        <div class="show-box">
            <div class="comment-title">评论</div>
            <div class="time-line">
                <div class="comment-content">
                    <div class='comment'> <img class=head-shot src='images/photo.jpg'>
                        <div class='c-circle'></div>
                        <span id='time'>2019-5-15&nbsp;
                        <span id='hour'>15:15</span>
                        </span>
                        <br>
                        <p style='padding:4px'>支持各种类型的Web网站接入，网站只需要粘贴、复制JS代码到网页</p>
                    </div>
                </div>
            </div>

        </div>
    </div>
    <script src="js/jquery-3.3.1.min.js"></script>
    <script>
        var hei = 200;
        $(function() {
            var dateDom = new Date();
            //获取本地时间，年月日时分
            var year = dateDom.getFullYear();
            var month = dateDom.getMonth() + 1;
            var day = dateDom.getDate();
            var hour = dateDom.getHours();
            var min = dateDom.getMinutes();

            $(".time-line").css("height", hei + "px");

            $(".pub-btn").click(function() {
                var comment_c = $(".input-text-area").val();

                if (comment_c == "") {
                    alert("请输入内容");
                    return;
                }

                $(".comment-content").prepend("<div class='comment'>" + "<img class=head-shot src='images/photo.jpg'>" +
                    "<div class='c-circle'></div>" +
                    "<span id='time'>" + year + "-" +
                    month + "-" +
                    day + "&nbsp;&nbsp;" +
                    "<span id='hour'>" + hour + ":" + min + "</span>" +
                    "</span>" +
                    "<br>" +
                    "<p style='padding:4px'>" + comment_c + "</p>" +
                    "</div>");
                $(".time-line").css("height", hei + "px");
                hei += 115;
            })


        })
    </script>

</body>

</html>

publish_comment.css

* {
    margin: 0;
    padding: 0
}

body {
    font-size: 14px;
    font-family: "微软雅黑";
    /* background: url("../images/2.jpg") top no-repeat; */
    background: #333333;
    background-attachment: fixed;
    z-index: 0;
    background-size: 100%;
}

.comment-box {
    width: 800px;
    margin: auto;
    margin-top: 100px;
}

.input-box {
    width: 100%;
}

.input-box-head {
    position: relative;
    width: 100%;
    height: 60px;
    z-index: 10;
}

.user-photo {
    width: 40px;
    height: 40px;
    border-radius: 42px;
    border: 1px solid #4398ed;
    position: absolute;
    top: 22px;
    left: 9px;
    font-size: 14px;
    color: #4398ed;
    text-align: center;
    line-height: 42px!important;
    font-family: "Microsoft YaHei";
    cursor: pointer;
    background: 0 0;
}

.input-box-main {
    display: block;
    position: relative;
    zoom: 1;
    z-index: 2;
}

.box-border-l {
    width: 8px;
    height: 97px;
    position: absolute;
    background: url("../images/border-l.png");
    top: 0;
    left: 0;
}

.box-border-r {
    width: 8px;
    height: 97px;
    position: absolute;
    background: url("../images/border-r.png");
    top: 0;
    right: 0;
}

.box-main {
    margin: 0 8px;
    height: 96px;
    /* background: #fff; */
    border-bottom: 1px solid #4398ed;
}

.box-top {
    width: calc(100% - 16px);
    height: 8px;
    background: url(https://changyan.itc.cn/mdevp/extensions/cmt-box/065/images/border-t.png);
    overflow: hidden;
    position: absolute;
    left: 8px;
    top: 0;
}

.input-region {
    padding: 18px 10px 0;
}

.input-text-area {
    width: 100%;
    height: 70px;
    background: 0 0;
    overflow-x: hidden;
    overflow-y: auto;
    border: 0;
    font-size: 13px;
    color: #4398ed;
    resize: none;
    line-height: normal;
    text-align: left;
    box-shadow: none;
    -webkit-box-shadow: none;
    outline: none;
    border: none;
}

.pub-area {
    width: 100%;
    position: relative;
    z-index: 12;
}

.pub-btn {
    position: absolute;
    top: 10px;
    right: 0;
    width: 102px;
    height: 30px;
    overflow: hidden;
    border: 0;
    padding: 0;
    margin: 0;
    cursor: pointer;
    background-image: url("../images/post-btn.png");
    background-repeat: no-repeat;
    background-color: transparent;
}

.show-box {
    position: relative;
    top: 10px;
}

.comment-title {
    position: absolute;
    top: 35px;
    left: 28px;
    width: 60px;
    height: 60px;
    line-height: 60px;
    text-align: center;
    font-size: 16px;
    color: #4398ed;
    border: 2px solid #4398ed;
    border-radius: 50%;
}

.time-line {
    width: 60px;
    height: 0;
    position: absolute;
    top: 100px;
    left: 0;
    border-right: 2px solid #4398ed;
}

.comment-content {
    width: 380px;
    height: 80px;
    position: absolute;
    top: 0px;
    left: 60px;
}

.comment-content .comment {
    width: 600px;
    height: 80px;
    /* background: #fff; */
    border: 1px solid #4398ed;
    border-radius: 6px;
    margin-top: 30px;
    font-size: 16px;
    line-height: 20px;
    color: #4398ed;
    word-break: break-all;
    position: relative;
    left: 15px;
    padding: 10px;
    box-sizing: border-box;
}

.c-circle {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    border: 2px solid #4398ed;
    background: #4398ed;
    position: absolute;
    top: 35px;
    left: -20px;
}

.head-shot {
    position: absolute;
    top: 20px;
    left: -70px;
    width: 40px;
    height: 40px;
    border: 1px solid #4398ed;
    border-radius: 50%;
}

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