響應式banner圖片輪播布局代碼

使用方法：

1、head引入css文件

<link rel="stylesheet" href="css/style.css" />

2、head引入js文件

<script type="text/javascript" src="js/jquery.min.js"></script>

3、body引入HTML代碼

<div class="c-banner">
	<div class="banner">
		<ul>
			<li><img src="img/lunbo1.jpg"></li>
			<li><img src="img/lunbo2.jpg"></li>
			<li><img src="img/lunbo3.jpg"></li>
		</ul>
	</div>
	<div class="nexImg">
		<img src="img/nexImg.png" />
	</div>
	<div class="preImg">
		<img src="img/preImg.png" />
	</div>
	<div class="jumpBtn">
		<ul>
			<li jumpImg="0"></li>
			<li jumpImg="1"></li>
			<li jumpImg="2"></li>
		</ul>
	</div>
</div>

<script type="text/javascript">
//點擊停止輪播
$("#stop").click(function(){
	clearInterval(time);
	console.log("dsda");
})
//用于判斷導航欄的狀態
var toggle = true;
var time=null;
var nexImg = 0;
var bannerHeight = $(".c-banner ul li img").eq(0).css("height");
var imgLength = $(".c-banner .banner ul li").length;
$(".c-banner").css("height",bannerHeight);
$(".c-banner .jumpBtn ul li[jumpImg="+nexImg+"]").css("background-color","black");
//導航欄最后一個li的邊框去除
$(".c-nav ul li:last").css("border","none");
//導航欄按鈕
$('.btnImg').click(function() {
	if (toggle) {
		$('.btnImg').css("border", "1px solid #b0ccf3");
		toggle = false
	} else {
		$('.btnImg').css("border", "1px solid transparent");
		toggle = true;
	}
	$(".show").slideToggle(300);
})

//窗口大小發生改變
$(window).resize(function() {
	//獲取窗口寬度
	var windSize = $(window).width();
	if (windSize > 576) {
		$(".show").slideDown(0);
	} else {
		$(".show").slideUp(0);
	}
	var bannerHeight = $(".c-banner ul li[style*='block'] img").css("height");
	$(".c-banner").css("height",bannerHeight);
});
$(document).ready(function(){
	//定時器
	time =setInterval(intervalImg,3000);
});

//點擊上一張
$(".preImg").click(function(){
	clearInterval(time);
	nexImg = nexImg-1;
	if(nexImg<0){
		nexImg=imgLength-1;
	}
	$(".c-banner .jumpBtn ul li").css("background-color","white");
	$(".c-banner .jumpBtn ul li[jumpImg="+nexImg+"]").css("background-color","black");
	$(".c-banner .banner ul li").eq(nexImg).css("display","block");
	$(".c-banner .banner ul li").eq(nexImg).stop().animate({"opacity":1},1000);
	$(".c-banner .banner ul li").eq(nexImg+1).stop().animate({"opacity":0},1000,function(){
		$(".c-banner ul li").eq(nexImg+1).css("display","none");
	});
	time =setInterval(intervalImg,3000);
})

//點擊下一張
$(".nexImg").click(function(){
	clearInterval(time);
	intervalImg();
	time =setInterval(intervalImg,3000);
})

//輪播圖
function intervalImg(){
	if(nexImg<imgLength-1){
		nexImg++;
	}else{
		nexImg=0;
	}
	
	$(".c-banner .banner ul li").eq(nexImg).css("display","block");
	$(".c-banner .banner ul li").eq(nexImg).stop().animate({"opacity":1},1000);
	$(".c-banner .banner ul li").eq(nexImg-1).stop().animate({"opacity":0},1000,function(){
		$(".c-banner .banner ul li").eq(nexImg-1).css("display","none");
	});
	$(".c-banner .jumpBtn ul li").css("background-color","white");
	$(".c-banner .jumpBtn ul li[jumpImg="+nexImg+"]").css("background-color","black");
}

//輪播圖底下按鈕
$(".c-banner .jumpBtn ul li").each(function(){
	$(this).click(function(){
		clearInterval(time);
		$(".c-banner .jumpBtn ul li").css("background-color","white");
		jumpImg = $(this).attr("jumpImg");
		if(jumpImg!=nexImg){
			var after =$(".c-banner .banner ul li").eq(jumpImg);
			var befor =$(".c-banner .banner ul li").eq(nexImg);
			nexImg=jumpImg;
			after.css("display","block");
			after.stop().animate({"opacity":1},1000);
			befor.stop().animate({"opacity":0},1000,function(){
				befor.css("display","none");
			});	
		}
		$(this).css("background-color","black");
		time =setInterval(intervalImg,3000);
	});
});
</script>