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jq评论功能练习-4.3
太早的博客
Original
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实例

<!DOCTYPE html>
<html>
<head>
<title>评论功能练习</title>
<meta charset="utf-8">
<link rel="icon" type="image/x-icon" href="static/images/logo.png">
<link rel="stylesheet" type="text/css" href="static/style.css">
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
</head>
<body>
<div id="list">
    <div class="box clearfix">
<!-- 删除说说按钮 close-->
        <a class="close" href="javascript:;">×</a>
        <img class="head" src="static/images/1.png" alt="">
        <div class="content">
            <div class="main">
                <p class="txt">
                    <span class="user">西门大官人: </span>
                      ~ All the luck is for you. ~
                </p>
                <img class="pic" src="static/images/img1.jpg" alt="">
            </div>
            <div class="info clearfix">
                <span class="time">02-14 23:01</span>
<!-- 给说说点赞 praise -->
                <a class="praise" href="javascript:;">赞</a>
            </div>
            <div class="praises-total" total="4" style="display: block;">4个人觉得很赞</div>
<!--评论内容-->           
            <div class="comment-list">
           <!--   每次评论要添加的内容跟标签   -->
                <div class="comment-box clearfix" user="self">
                    <img class="myhead" src="static/images/4.jpg" alt="">
                    <div class="comment-content">
                        <p class="comment-text"><span class="user">我:</span>你说的都对……</p>
                        <p class="comment-time">
                            2019-01-19 14:36
                            <a href="javascript:;" class="comment-praise" total="1" my="0" style="display: inline-block">1赞</a>
                            <a href="javascript:;" class="comment-operate">删除</a>
                        </p>
                    </div>
                </div>
                <!--添加结束-->                                                           
            </div>
<!--评论内容结束--> 
            <div class="text-box">
                    <textarea class="comment" placeholder="评论…"></textarea>
                    <button class="btn">回 复</button>
                    <span class="word"><span class="length">0</span>/140</span>
            </div>                
        </div>            
    </div> 
                   
    <div class="box clearfix">
        <a class="close" href="javascript:;">×</a>
        <img class="head" src="static/images/2.jpg" alt=""/>
        <div class="content">
            <div class="main">
                <p class="txt">
                    <span class="user">欧阳克 : </span>三亚的海滩很漂亮。
                </p>
                <img class="pic" src="static/images/img5.jpg" alt=""/>
            </div>
            <div class="info clearfix">
                <span class="time">02-14 23:01</span>
                <a class="praise" href="javascript:;">赞</a>
            </div>
            <div class="praises-total" total="0" style="display: none;"></div>
            <div class="comment-list">
                <div class="comment-box clearfix" user="other">
                    <img class="myhead" src="static/images/3.png" alt="">
                    <div class="comment-content">
                        <p class="comment-text"><span class="user">韦小宝：</span>我也想去三亚。</p>
                        <p class="comment-time">
                            2019-01-19 14:36
                            <a href="javascript:;" class="comment-praise" total="0" my="0">赞</a>
                            <a href="javascript:;" class="comment-operate">删除</a>
                        </p>
                    </div>
                </div>
            </div>
            <div class="text-box">
                    <textarea class="comment" placeholder="评论…"></textarea>
                    <button class="btn">回 复</button>
                    <span class="word"><span class="length">0</span>/140</span>
            </div>
        </div>
    </div>
</div>
<script type="text/javascript">
    $(function(){
        $('.comment').on('keyup',function(){
            var len=$(this).val().length;
            $(this).parents('.text-box').find('.length').text(140-len);
        })
        $(document).on('click','.btn',function(){
            var val=$(this).prev().val()
            if(val==''){
                alert('留言不能为空！')
            }else{
                var date=new Date();
                var y=date.getFullYear()+'-'+(date.getMonth()+1)+'-'+date.getDate()+'  '+date.getHours()+':'+date.getMinutes()+':'+date.getSeconds();
                // console.log(y);
                var html='<div class="comment-box clearfix" user="self"><img class="myhead" src="static/images/4.jpg" alt=""><div class="comment-content"><p class="comment-text"><span class="user">我:</span>'+val+'</p><p class="comment-time">'+y+'<a href="javascript:;" class="comment-praise" total="1" my="0" style="display: inline-block">1赞</a><a href="javascript:;" class="comment-operate">删除</a></p></div></div>'
                $(this).parents('.box').find('.comment-list').append(html);
                $(this).parents('.box').find('.comment').val('');
                $(this).parents('.box').find('.length').text('0');
                $(this).prev().height(20)
            }
        })
        $(document).on('click','.comment-operate',function(){
            if(confirm('确定删除么？')){
                $(this).parents('.comment-box').remove();
            }
        })
        $(document).on('click','.comment',function(){
            $(this).height(80);
        })
        $(document).on('click','.comment-praise',function(){
            var num=parseInt($(this).attr('total'))+1;
            $(this).attr('total',num);
            $(this).html(num+'赞')
        })
        $(document).on('click','.close',function(){
            if(confirm('确定删除么？')){
                $(this).parent().remove();
            }
        })
    })
</script>
</body>
</html>

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Correction status：Uncorrected

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