移动端木马轮播图(图片不确定个数)无限轮播的问题

<div class="containering">
			<div id="slide" class="slide" alt="star">
				<div class="img"><img src="666.png" /></div>
				<div class="img"><img src="666.png" /></div>
				<div class="img"><img src="111.png" /></div>
				<div class="img"><img src="666.png" /></div>
				<div class="img"><img src="666.png" /></div>
				<div class="img"><img src="666.png" /></div>
				<div class="img"><img src="666.png" /></div>
			</div>
		</div>

　　

body {
				background-color: #262626
			}
			
			* {
				padding: 0;
				margin: 0;
			}
			
			.containering {
				 100%;
				height: 3.65rem;
				box-sizing: border-box;
				padding: 0 0.1rem;
			}
			
			.slide {
				 100%;
				height: 3.65rem;
				overflow: hidden;
				position: relative;
			}
			
			.slide .img {
				overflow: hidden;
				position: absolute;
				transition: width 0.4s, height 0.4s, top 0.4s, left 0.4s, z-index 0.4s;
			}
			
			.slide .img img {
				 calc(100% - 14px);
				height: calc(100% - 14px);
				margin: 7px;
			}
			
			.slide .img1 {
				 20%;
				height: 65%;
				top: 22%;
				left: 2%;
				z-index: 1;
			}
			
			.slide .img2 {
				 26%;
				height: 80%;
				top: 14%;
				left: 15%;
				z-index: 2;
			}
			
			.slide .img3 {
				 35%;
				height: 100%;
				top: 0%;
				left: 33%;
				z-index: 3;
			}
			
			.slide .img4 {
				 34%;
				height: 80%;
				top: 14%;
				left: 51%;
				z-index: 2;
			}
			
			.slide .img5 {
				 20%;
				height: 65%;
				top: 22%;
				left: 78%;
				z-index: 1;
			}
			
			.slide-bt {
				position: absolute;
				left: 50%;
				bottom: 13%;
				z-index: 10;
			}
			
			.slide-bt span {
				 24px;
				height: 8px;
				background: #c9caca;
				float: left;
				margin: 5px;
				border-radius: 4px;
			}

　　

var autoLb = true; //autoLb=true为开启自动轮播
			var autoLbtime = 1; //autoLbtime为轮播间隔时间（单位秒）
			var touch = true; //touch=true为开启触摸滑动
			var slideBt = true; //slideBt=true为开启滚动按钮

			var slideNub; //轮播图片数量

			//窗口大小改变时改变轮播图宽高
			$(window).resize(function() {
				$(".slide").height($(".slide").width() * 0.56);
			});

			$(function() {
				$(".slide").height($(".slide").width() * 0.56);
				slideNub = $(".slide .img").size(); //获取轮播图片数量
				for(i = 0; i < slideNub; i++) {
					$(".slide .img:eq(" + i + ")").attr("data-slide-imgId", i);
				}

				//根据轮播图片数量设定图片位置对应的class
				if(slideNub == 1) {
					for(i = 0; i < slideNub; i++) {
						$(".slide .img:eq(" + i + ")").addClass("img3");
					}
				}
				if(slideNub == 2) {
					for(i = 0; i < slideNub; i++) {
						$(".slide .img:eq(" + i + ")").addClass("img" + (i + 3));
					}
				}
				if(slideNub == 3) {
					for(i = 0; i < slideNub; i++) {
						$(".slide .img:eq(" + i + ")").addClass("img" + (i + 2));
					}
				}
				if(slideNub > 3 && slideNub < 6) {
					for(i = 0; i < slideNub; i++) {
						$(".slide .img:eq(" + i + ")").addClass("img" + (i + 1));
					}
				}
				if(slideNub >= 6) {
					for(i = 0; i < slideNub; i++) {
						if(i < 5) {
							$(".slide .img:eq(" + i + ")").addClass("img" + (i + 1));
						} else {
							$(".slide .img:eq(" + i + ")").addClass("img5");
						}
					}
				}

				//根据轮播图片数量设定轮播图按钮数量
				if(slideBt) {
					for(i = 1; i <= slideNub; i++) {
						$(".slide-bt").append("<span data-slide-bt='" + i + "' onclick='tz(" + i + ")'></span>");
					}
					$(".slide-bt").width(slideNub * 34);
					$(".slide-bt").css("margin-left", "-" + slideNub * 17 + "px");
				}

				//自动轮播
				if(autoLb) {
					setInterval(function() {
						right();
					}, autoLbtime * 1000);
				}

				if(touch) {
					k_touch();
				}
				slideLi();
				imgClickFy();
			})

			//右滑动
			function right() {
				var fy = new Array();
				for(i = 0; i < slideNub; i++) {
					fy[i] = $(".slide .img[data-slide-imgId=" + i + "]").attr("class");
				}
				for(i = 0; i < slideNub; i++) {
					if(i == 0) {
						$(".slide .img[data-slide-imgId=" + i + "]").attr("class", fy[slideNub - 1]);
					} else {
						$(".slide .img[data-slide-imgId=" + i + "]").attr("class", fy[i - 1]);
					}
				}
				imgClickFy();
				slideLi();
			}

			//左滑动
			function left() {
				var fy = new Array();
				for(i = 0; i < slideNub; i++) {
					fy[i] = $(".slide .img[data-slide-imgId=" + i + "]").attr("class");
				}
				for(i = 0; i < slideNub; i++) {
					if(i == (slideNub - 1)) {
						$(".slide .img[data-slide-imgId=" + i + "]").attr("class", fy[0]);
					} else {
						$(".slide .img[data-slide-imgId=" + i + "]").attr("class", fy[i + 1]);
					}
				}
				imgClickFy();
				slideLi();
			}

			//轮播图片左右图片点击翻页
			function imgClickFy() {
				$(".slide .img").removeAttr("onclick");
				$(".slide .img2").attr("onclick", "left()");
				$(".slide .img4").attr("onclick", "right()");
			}

			//修改当前最中间图片对应按钮选中状态
			function slideLi() {
				var slideList = parseInt($(".slide .img3").attr("data-slide-imgId")) + 1;
				$(".slide-bt span").removeClass("on");
				$(".slide-bt span[data-slide-bt=" + slideList + "]").addClass("on");
			}

			//轮播按钮点击翻页
			function tz(id) {
				var tzcs = id - (parseInt($(".slide .img3").attr("data-slide-imgId")) + 1);
				if(tzcs > 0) {
					for(i = 0; i < tzcs; i++) {
						setTimeout(function() {
							right();
						}, 1);
					}
				}
				if(tzcs < 0) {
					tzcs = (-tzcs);
					for(i = 0; i < tzcs; i++) {
						setTimeout(function() {
							left();
						}, 1);
					}
				}
				slideLi();
			}

			//触摸滑动模块
			function k_touch() {
				var _start = 0,
					_end = 0,
					_content = document.getElementById("slide");
				_content.addEventListener("touchstart", touchStart, false);
				_content.addEventListener("touchmove", touchMove, false);
				_content.addEventListener("touchend", touchEnd, false);

				function touchStart(event) {
					var touch = event.targetTouches[0];
					_start = touch.pageX;
				}

				function touchMove(event) {
					var touch = event.targetTouches[0];
					_end = (_start - touch.pageX);
				}

				function touchEnd(event) {
					if(_end < -100) {
						left();
						_end = 0;
					} else if(_end > 100) {
						right();
						_end = 0;
					}
				}
			}