解决多层菜单问题 --- fix1

src/components/app-menu-item/app-menu-item.vue

@@ -10,12 +10,12 @@
                         <template v-else-if="item.iconcls && item.iconcls != ''">
                             <i :class="[item.iconcls, 'app-menu-icon']"></i>
                         </template>
-                        <template v-else>
+                        <template v-else-if="isFirst">
                             <i class='fa fa-cogs app-menu-icon'></i>
                         </template>
                         <span class='text' :title="$t(`app.menus.${ctrlName}.${item.name}`)">{{$t(`app.menus.${ctrlName}.${item.name}`)}}</span>
                     </template>
-                    <app-menu-item :menus="item.items" :ctrlName="ctrlName" :counterdata="counterdata" :popperclass="popperClass"></app-menu-item>
+                    <app-menu-item :menus="item.items" :ctrlName="ctrlName" :isFirst="false" :counterdata="counterdata" :popperclass="popperClass"></app-menu-item>
                 </el-submenu>
              </template>
              <template v-else>
@@ -27,7 +27,7 @@
                         <template v-else-if="item.iconcls && item.iconcls != ''">
                             <i :class="[item.iconcls, 'app-menu-icon']"></i>
                         </template>
-                        <template v-else>
+                        <template v-else-if="isFirst">
                             <i class='fa fa-cogs app-menu-icon'></i>
                         </template>
                         <template slot="title">
@@ -86,6 +86,13 @@ export default class AppMenuItem extends Vue {
      */
     @Prop() public popperClass!: any;
 
+    /**
+     * 是否是一级菜单
+     * 
+     * @type {*}
+     * @memberof AppMenuItem
+     */
+    @Prop() public isFirst!: boolean;
 
 }
 </script>
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