左右滑事件：

    function changing(p,l,r) {
        //p要調用函數(shù)的對象L、R回調函數(shù)
        //這個函數(shù)深刻理解了函數(shù)的生命周期
        var x1 , a , x2 ,s;
        //手指按下
        p.ontouchstart = function(event){
            this.ontouchend=null
            var ev = event.targetTouches[0];
            x1 = ev.pageX;
        };
        //手指移動
        p.ontouchmove = function(){
            var ev = event.targetTouches[0];
            x2 = x1 - ev.pageX;
            
            //手指抬起
            p.ontouchend = function(){
                if(x2 >= 15){
                //回調函數(shù)
                    s = l(p)
                }else if(x2 < -15 ){
                //回調函數(shù)
                    s = r(p)
                }
            }
        };
    }

滾輪使用:

    var uls = document.getElementsByTagName("ul")[0];
    var lis = uls.getElementsByTagName("li");
    var hei = lis[0].clientHeight;
    console.log(hei)
    var num = 0;
    function fun(e){
        var sco = document.documentElement.scrollTop || window.pageYOffset || document.body.scrollTop;
        var e = e || window.event;
        var dal = e.wheelDelta || e.datail;
        //正是向上，負是向下
        console.log(dal)
        if ( dal < 0 ) {
            
            if(num < lis.length){
                num++;
                $("div div").eq(num).addClass("no").siblings().removeClass("no");
                document.body.scrollTop = num * hei;
            }
            
        } else{
            if(num > 0){
                num--;
                $("div div").eq(num).addClass("no").siblings().removeClass("no");
                document.body.scrollTop = num * hei;
            }
        }
    }
    
    window.onmousewheel = fun;