fix bug

apps/classroom/Tpl/default/Index/search_w3g.html

@@ -309,7 +309,7 @@
         data: function () {
             return {
                 keyword: "",
-                showHistory: false,
+                showHistory: true,
                 tab: 0,
                 options: [{
                     title: '视频',
@@ -321,7 +321,8 @@
                     title: '实物',
                     items: []
                 }],
-                cacheKeyWorlds: this.getCacheKeyWorlds()
+                cacheKeyWorlds: this.getCacheKeyWorlds(),
+                yulan: 0
             }
         },
         computed: {