同类型元素，只有一个被选中js

<div class="wrap-box flex_row">
           <div class="wrap-block">
               <div class="wrap-b">
                   <div class="wrap-bit"></div>
                   <img class="wrap_img" src="images/temp/pic_240x240.png" alt="" />
                   <p class="wrap_p">刀塔传奇</p>
               </div>
           </div>
           <div class="wrap-block">
               <div class="wrap-b">
                   <div class="wrap-bit"></div>
                   <img class="wrap_img" src="images/temp/pic_240x240.png" alt="" />
                   <p class="wrap_p">李小龙：进入比赛</p>
               </div>
           </div>
           <div class="wrap-block">
               <div class="wrap-b">
                   <div class="wrap-bit"></div>
                   <img class="wrap_img" src="images/temp/pic_240x240.png" alt="" />
                   <p class="wrap_p">刀塔传奇</p>
               </div>
           </div>
           <div class="wrap-block">
               <div class="wrap-b">
                   <div class="wrap-bit"></div>
                   <img class="wrap_img" src="images/temp/pic_240x240.png" alt="" />
                   <p class="wrap_p">刀塔传奇</p>
               </div>
           </div>
           <div class="wrap-block">
               <div class="wrap-b">
                   <div class="wrap-bit"></div>
                   <img class="wrap_img" src="images/temp/pic_240x240.png" alt="" />
                   <p class="wrap_p">刀塔传奇</p>
               </div>
           </div>
           <div class="wrap-block">
               <div class="wrap-b">
                   <div class="wrap-bit"></div>
                   <img class="wrap_img" src="images/temp/pic_240x240.png" alt="" />
                   <p class="wrap_p">刀塔传奇</p>
               </div>
           </div>
       </div>

.wrap-box{width:100%;display: flex;justify-content: space-around;align-items: flex-end;flex-wrap: wrap;border-bottom:1px solid #cecfd9;background-color:#fff;}
.wrap-block{width:33.33%;height:auto;border-top:1px solid #cecfd9;border-left:1px solid #cecfd9;}
.wrap-block:nth-child(3n-2){border-left:0 none;}
.wrap-block .wrap-b{width:100%;height:100%;position:relative;}
.wrap-block .wrap-b .wrap-bit{display:none;position:absolute;right:0;top:0;z-index:2;width:20rem;height:20rem;background:url(../images/wrap-bitimg.png) no-repeat;background-size:cover;}
.wrap-block.active .wrap-b .wrap-bit{display:block;}
.wrap-block .wrap-b .wrap_img{display:block;width:80%;height:80%;margin:0 auto;padding:10% 0 0;}
.wrap-block .wrap-b .wrap_p{margin-bottom:8%;font-size:3rem;color:#666;line-height:5rem;height:5rem;text-align:center;overflow:hidden;}

<script>
   $(document).ready(function(){
       $(‘wrap-block‘).click(function(){
           $(this).toggleClass(‘active‘).siblings(‘.wrap-block‘).removeClass(‘active‘);
       })
   })

</script>