首先上bootstrap 官网 https://v3.bootcss.com/javascript/#carousel 

设置这个参数就可以，后面说如何采坑。见代码

html 部分

<!-- 轮播one -->
    <div id="myCarousel" class="carousel slide"  data-ride="carousel" data-interval="2500">

        <!-- 轮播（Carousel）项目 -->
        <div class="carousel-inner bxwz">
            <div class="item active bannerone-slide  ">
                <div class="container banner_position">
                    <h2>TOP-TIER IT CARE WITH</h2>
                    <h2>1/5 OF SILLICAN-VALLEY-COST</h2>
                    <h4>WE OFFERS GREAT SERVICE AT EVEN GREATER RATES</h4>
                    <div><span>ARCHITECT</span><span>PROJECT MANAGER</span><span>ENGINEER</span></div>
                </div>
            </div>
            <div class="item bannertwo-slide">
                <div class="container banner_position">
                    <h2>ONE STOP. FROM LISTENING TO YOU,</h2>
                    <h2>TO DEPLOYMENT/MAINTENANCE</h2>
                    <div><span>ENGINEER</span><span>DESIGNER</span><span>NETWCRKMANAGEMENT</span>
                        <span>MATHEMATICIAN</span></div>
                </div>
            </div>
            <div class="item bannerthree-slide">
                <div class="container banner_position">
                    <h2>YES WE EVEN DO</h2>
                    <h2>DATA MODELLING</h2>
                    <h4>WE OFFERS GREAT SERVICE AT EVEN GREATER RATES</h4>
                    <div><span>ARCHITECT</span><span>PROJECT MANAGER</span><span>ENGINEER</span></div>
                </div>
            </div>
              <!-- 轮播（Carousel）指标 -->
            <ol class="carousel-indicators" data-ride="carousel" data-interval="1000">
                <li data-target="#myCarousel" data-slide-to="0" class="active"></li>
                <li data-target="#myCarousel" data-slide-to="1"></li>
                <li data-target="#myCarousel" data-slide-to="2"></li>
            </ol>
        </div>    
        <a class="carousel-control left" href="#myCarousel" data-slide="prev"></a>
        <a class="carousel-control right" href="#myCarousel" data-slide="next"></a>
    </div>

js部分

 $('#myCarousel').carousel({
    interval: 2500,
    pause: null,
    wrap:true
  });

这样设置是不对的，出不来效果，鼠标悬浮上去还是会轮播，

解决办法：必须修改HTML部分中第一行

 <div id="myCarousel" class="carousel slide"  data-ride="carousel" data-interval="2500">
修改为

<div id="myCarousel" class="carousel slide" >

这个样子就ok了