JQuery实例

左侧菜单

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
          .menu{
              height: 600px;
               30%;
              background-color: #2F4F4F;
              float: left;
          }
         .title{
             line-height: 50px;
             color: #ddd;
         }
         .title:hover{
             cursor: pointer;
             color: lightcyan;
             font-size: 18px;
         }
         .hide{
             display: none;
         }
    </style>
</head>

<body>
    <div class="outer">
        <div class="menu">
            <div class="item">
                <div class="title" onclick="Show(this);">菜单一</div>
                <div class="con">
                    <div>111</div>
                    <div>111</div>
                    <div>111</div>
                </div>
            </div>
            <div class="item">
                <div class="title" onclick="Show(this);">菜单二</div>
                <div class="con hide">
                    <div>222</div>
                    <div>222</div>
                    <div>222</div>
                </div>
            </div>
            <div class="item">
                <div class="title" onclick="Show(this);">菜单三</div>
                <div class="con hide">
                    <div>333</div>
                    <div>333</div>
                    <div>333</div>
                </div>
            </div>
        </div>
    </div>

    <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
    <script>
        function Show(self) {
            $(self).next().removeClass("hide").parent().siblings().children(".con").addClass("hide");
        }
    </script>
</body>
</html>

View Code

轮播图

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        ul{
            list-style: none;
        }
        .out{
             730px;
            height: 454px;
            margin: 50px auto;
            position: relative;
        }
        .out .img li{
            position: absolute;
            left: 0;
            top: 0;
        }
        .out .num{
            position: absolute;
            left:0;
            bottom: 20px;
            text-align: center;
            font-size: 0;
             100%;
        }
        .out .btn{
            position: absolute;
            top:50%;
            margin-top: -30px;
             30px;
            height: 60px;
            background-color: aliceblue;
            color: black;
            text-align: center;
            line-height: 60px;
            font-size: 40px;
            display: none;
        }
        .out .num li{
             20px;
            height: 20px;
            background-color: black;
            color: #fff;
            text-align: center;
            line-height: 20px;
            border-radius: 60%;
            display: inline;
            font-size: 18px;
            margin: 0 10px;
            cursor: pointer;
        }
        .out .num li.active{
            background-color: red;
        }
        .out .left{
            left: 0;
        }
        .out .right{
            right: 0;
        }
        .out:hover .btn{
            display: block;
            color: white;
            font-weight: 900;
            background-color: black;
            opacity: 0.8;
            cursor: pointer;
        }
        .out img {
            height: 100%;
             100%;
        }
    </style>
</head>
<body>
     <div class="out">
         <ul class="img">
             <li><a href="#"><img src="images/1.jpg" alt=""></a></li>
             <li><a href="#"><img src="images/2.jpg" alt=""></a></li>
             <li><a href="#"><img src="images/3.jpg" alt=""></a></li>
             <li><a href="#"><img src="images/4.jpg" alt=""></a></li>
             <li><a href="#"><img src="images/5.jpg" alt=""></a></li>
         </ul>

         <ul class="num">
             <!--<li class="active">1</li>-->
             <!--<li>2</li>-->
             <!--<li>3</li>-->
             <!--<li>4</li>-->
             <!--<li>5</li>-->
         </ul>

         <div class="left btn"><</div>
         <div class="right btn">></div>

     </div>

    <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
    <script>

        $(function(){
            var size=$(".img li").size();
            for (var i= 1;i<=size;i++){
                var li="<li>"+i+"</li>";
                $(".num").append(li);
            }
            $(".num li").eq(0).addClass("active");


            $(".num li").mouseover(function(){
               $(this).addClass("active").siblings().removeClass("active");
               var index=$(this).index();
               i=index;
               $(".img li").eq(index).fadeIn(1000).siblings().fadeOut(1000);
            });


        i=0;
        var t=setInterval(move,1500);

        function move(){
            i++;
            if(i==size){
                i=0;
            }
            $(".num li").eq(i).addClass("active").siblings().removeClass("active");
            $(".img li").eq(i).stop().fadeIn(1000).siblings().stop().fadeOut(1000);
        }

        function moveL(){
            i--;
            if(i==-1){
                i=size-1;
            }
            $(".num li").eq(i).addClass("active").siblings().removeClass("active");
            $(".img li").eq(i).stop().fadeIn(1000).siblings().stop().fadeOut(1000);
        }

        $(".out").hover(function(){
            clearInterval(t);
        },function(){
            t=setInterval(move,1500);
        });

        $(".out .right").click(function(){
            move()
        });
        $(".out .left").click(function(){
           moveL()
        })

        });
    </script>

</body>
</html>

View Code