移动端长按事件操作

<ul id="lis">
    <li><span></span></li>
    <li><span></span></li>
    <li><span></span></li>
    <li><span></span></li>
    <li><span></span></li>
</ul>

#lis li {
    width: 50px;
    height: 50px;
    border: 1px solid #000;
    margin: 0 10px 15px;
    float: left;
    list-style-type: none;
    position: relative;
}
#lis li span {
    width: 10px;
    height: 10px;
    background-color: red;
    position: absolute;
    right: -5px;
    top: -5px;
    display: none;
    z-index: 5;
}

$(function(){

    $(‘#lis li‘).on({
        touchstart: function(e){
            var _this = $(this)  // 获取当前的值
            timeOutEvent = setTimeout(function(){
                timeOutEvent = 0;   
                _this.children(‘span‘).show();  // 操作当前的值
            },800);
        },  
        touchmove: function(){  
            clearTimeout(timeOutEvent);   
            timeOutEvent = 0;   
        } 
    })

    $(‘#lis li span‘).on(‘click‘,function(){
        $(this).parent().remove();
    })

});