鼠标拖拽删除

2018-06-24 01:00:36来源：未知阅读 ()

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        ul,li{
            margin: 0;
            padding: 0;
            list-style: none;
        }
        #box{
            width: 400px;
            height: 420px;
            background-color: pink;
            padding-top: 30px;
            margin: auto;
        }
        .title,.end{
            width: 300px;
            margin: auto;
        }
        input{
            width: 280px;
            height: 80px;
            border-radius: 10px;
            padding: 0 10px;
            margin: 0;
            border:0;
        }
        .text{
            display: inline-block;
            width: 300px;
            height: 30px;
            border-radius: 10px;
            background-color: red;
            text-align: center;
            line-height: 30px;
            margin-top: 15px;
        }
        .end{
            margin-top: 10px;
        }
        li{
            width: 100%;
            height: 30px;
            overflow: hidden;
            line-height: 30px;
        }
        .row{
            float: left;
        }
        .delete{
            float: right;
            cursor: pointer;
        }
    </style>
</head>
<body>
<div id="box">
    <div class="title">
        <input type="text">
        <span class="text">提交</span>
    </div>
    <ul class="end"></ul>
</div>
<script>

    //获取需要操作的元素
    var inp = document.querySelector('input');
    var btn = document.querySelector('.text');
    var end = document.querySelector('.end');


    //添加点击事件
    btn.onclick = function () {

        //如果没有输入内容时要做的事情
        if(inp.value == ''){

            alert('请输入内容');
            return;

        }

        //生成输入的内容
        end.innerHTML += '<li><span class="row">'+inp.value+'</span><span class="delete">删除</span></li>';

        //清空value值
        inp.value = '';
    }

    //点击事件
    end.onclick = function(ev){
        var ss = ev.target;
        //绑定事件  利用父级删除子级；
        if(ss.getAttribute('class')=='delete'){
            end.removeChild(ss.parentNode);
        }

    }

</script>


</body>
</html>