切换图片路径

var Call=document.getElementsByClassName("Call");

    var li=document.getElementsByClassName("foot-11");

初始的图片路径

    var arr=["images/底部11.png","images/底部2.png","images/底部3.png","images/底部4.png","images/底部5.png"]

切换的图片路径

    var arr1=["images/底部1.png","images/底部22.png","images/底部33.png","images/shoushi.png","images/底部55.png"]

    var x=0;

    Call[x].style.backgroundColor="white";

    for(var i=0;i<li.length;i++){

        li[i].index=i;

监听点击事件

        li[i].addEventListener("click",function(){

            console.log(li[i])

            Call[x].style.backgroundColor="#f13c18";

            Call[x].children[0].src=arr[x]

            x=this.index;

            Call[x].style.backgroundColor="white";

            Call[x].children[0].src=arr1[x]

        })

    }