diff --git a/index.html b/index.html
index db646c6..597441a 100644
--- a/index.html
+++ b/index.html
@@ -451,7 +451,7 @@
     <script src="js/jquery.imgscroll.min.js"></script>
     <script src="js/index_slick.js"></script>
     <script src="js/owl.carousel.min.js"></script>
-	<script src="js/index.js?v=3"></script>
+	<script src="js/index.js?v=19"></script>
     
    
 </body>
diff --git a/js/index.js b/js/index.js
index 81d96c0..6991c45 100644
--- a/js/index.js
+++ b/js/index.js
@@ -83,6 +83,7 @@ $(function(){
         }
       ]
   });
+
   $('.electricItem').mouseenter(function(){
     $(this).addClass('section3active').parent().siblings().children().removeClass('section3active')
       if($(this).children()[1].innerText=='先进材料'){
@@ -392,14 +393,29 @@ $(function(){
       })
       $('.select').append(html)
       $('.select').change(function(){
+    
+        // let oWindow = window.open('', '_blank');
         if($(this).val()){
-          // window.open($(this).val());
-          window.location.href = $(this).val()
+          var u = navigator.userAgent;
+          var isAndroid = u.indexOf('Android') > -1 || u.indexOf('Adr') > -1; //android终端
+          var isiOS = !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/); //ios终端
+          if(isiOS){
+            window.location.href = $(this).val()
+          }else{
+            window.open($(this).val());
+          }
+          if(/android/i.test(navigator.userAgent)){
+          }
+          if(/(iPhone|iPad|iPod|iOS)/i.test(navigator.userAgent)){
+          }else{
+            
+          }
         }
       })
     }
   })
 })
+
 function news01_render(categoryId){
   $.ajax({
       type: 'post',