修改移动端banner和发展历程bug

src/pages/index/App.js

         let historySwiperText=document.querySelectorAll(".historySwiper .text");
         historySwiperText.forEach(item=>{
             let txt=item.innerText;
-            let textNew = txt.replace('@', '<br>');
+            let textNew = txt.replace(/@/g, '<br>');
             item.innerHTML=textNew;
         });
         allNum.textContent=historySlides.length;

src/pages/index/index.html

       <div class="wow domInUp banner">
         <div class="swiper bannerSwiper">
           <div class="swiper-wrapper">
-            <div class="swiper-slide">
-              <!-- <img
+            <div class="swiper-slide bannerS1">
+              <img
                 class="lazy"
                 data-src="./static/images/index/banner1.jpg"
-                data-srcM="./static/images/index/banner1m.jpg"
+                data-srcM="./static/images/index/banner.gif"
                 alt=""
-              />-->
+              />
               <!-- 用视频就用下面的，把图片删除 -->
               <video
                 class="lazy"

src/pages/index/index.less

         height: 100%;
         object-fit: cover;
       }
+      .bannerS1{
+        img{
+          display: none;
+        }
+      }
       .title{
         text-shadow: 0px 2px 5px rgba(0, 0, 0, 0.28);
       }
       display: none;
     }
     .bannerSwiper{
+      .bannerS1{
+        img{
+          display: block;
+        }
+        video{
+          display: none;
+        }
+      }
       .swiper-pagination{
         display: block;
         bottom: 60px;