feat:添加正常和选中的icon图标;

pages.json

 {
   "pages": [
-    {
-      "path": "pages/template/template-2-web",
-      "style": {
-        "navigationBarTitleText": "template-2-web"
-      }
-    },
     //pages数组中第一项表示应用启动页，参考：https://uniapp.dcloud.io/collocation/pages
     {
       "path": "pages/tabbar-a/tabbar-a",
@@ -138,23 +132,33 @@
     "list": [
       {
         "pagePath": "pages/tabbar-a/tabbar-a",
-        "text": "页面A"
+        "text": "页面A",
+        "iconPath": "static/normal.png",
+        "selectedIconPath": "static/selected.png"
       },
       {
         "pagePath": "pages/tabbar-b/tabbar-b",
-        "text": "页面B"
+        "text": "页面B",
+        "iconPath": "static/normal.png",
+        "selectedIconPath": "static/selected.png"
       },
       {
         "pagePath": "pages/tabbar-c/tabbar-c",
-        "text": "页面C"
+        "text": "页面C",
+        "iconPath": "static/normal.png",
+        "selectedIconPath": "static/selected.png"
       },
       {
         "pagePath": "pages/tabbar-d/tabbar-d",
-        "text": "页面D"
+        "text": "页面D",
+        "iconPath": "static/normal.png",
+        "selectedIconPath": "static/selected.png"
       },
       {
         "pagePath": "pages/tabbar-e/tabbar-e",
-        "text": "页面E"
+        "text": "页面E",
+        "iconPath": "static/normal.png",
+        "selectedIconPath": "static/selected.png"
       }
     ]
   },