js diapositive gauche native à supprimer

比较简单的滑动删除，样式没有细调<style> 
html {
    font-family:微软雅黑;
    font-size:32px;
}
body, div, p, ul, li, ol, dl, dd, dt, p, h1, h2, h3, h4, h5, h6, form, fieldset, legend, input, textarea, select{
    margin:0;
    padding:0;
}
.list{overflow:hidden;margin-top:.2rem;background-color: #fff;}
        .list li{overflow:hidden;width:120%;border-bottom:1px solid #ddd; padding: 0.626rem 0 0.533rem;}
        .list li div{-webkit-transition:all 0.3s linear;transition:all 0.3s linear;position: relative;}
        .swipeleft{transform:translateX(-15%);-webkit-transform:translateX(-15%);}
        .qq{display: flex;width: 85%;}
        .ww{display: flex;align-items: center;}
        .header_m img{width: 1.306rem;height: 1.306rem;display: block;}
        .header_t{width: 78%;margin-left: 0.226rem;}
        .law_name{font-size: 0.453rem;color: #333;}
        .msg_c{ font-size: 0.4rem;color: #666; margin-top: 0.133rem; overflow: hidden;white-space: nowrap;text-overflow: ellipsis;}
        .date{font-size: 0.373rem;color: #838383;float: right;}
        .de{font-size: 0.4rem;color: #fff;background-color: red;height: 40px;line-height: 40px;width:100%;text-align: center;}
</style>

<div class="list">
            <ul>
                <li>
                    <div class="ww" style="display: flex;align-items: center;padding-left:0.333rem">
                        <div class="qq">
                            <div class="header_m">
                                <a href="lawerMsg.html" class="lawyer_head">
                                    <img src="https://ss0.bdstatic.com/70cFvHSh_Q1YnxGkpoWK1HF6hhy/it/u=4005596794,992112216&fm=27&gp=0.jpg"/>
                                </a>
                            </div>
                            <div class="header_t">
                                <a href="contacting.html" class="msg">
                                    <p class="law_name">陈律师 <time class="date">2018.1.31 10:00</time></p>
                                    <p class="msg_c">今天出庭谈判关于离婚案问题今天出庭谈判关于离婚案问题今天出庭谈判关于离婚案问题</p>
                                </a>
                            </div>
                        </div>
                        <div class="de">删除</div>
                    </div>
                </li>
            </ul>
        </div>


<script>
    //侧滑显示删除按钮
    var expansion = null; //是否存在展开的list
    var container = document.querySelectorAll(&#39;.ww&#39;);
    for(var i = 0; i < container.length; i++){    
        var x, y, X, Y, swipeX, swipeY;
        container[i].addEventListener(&#39;touchstart&#39;, function(event) {
            x = event.changedTouches[0].pageX;
            y = event.changedTouches[0].pageY;
            swipeX = true;
            swipeY = true ;
            if(expansion){   //判断是否展开，如果展开则收起
                expansion.className = "";
            }        
        });
        container[i].addEventListener(&#39;touchmove&#39;, function(event){
            
            X = event.changedTouches[0].pageX;
            Y = event.changedTouches[0].pageY;        
            // 左右滑动
            if(swipeX && Math.abs(X - x) - Math.abs(Y - y) > 0){
                // 阻止事件冒泡
                event.stopPropagation();
                if(X - x > 10){   //右滑
                    event.preventDefault();
                    this.className = "";    //右滑收起
                }
                if(x - X > 10){   //左滑
                    event.preventDefault();
                    this.className = "swipeleft";   //左滑展开
                    expansion = this;
                }
                swipeY = false;
            }
            // 上下滑动
            if(swipeY && Math.abs(X - x) - Math.abs(Y - y) < 0) {
                swipeX = false;
            }        
        });
    }
    </script>