fix

pages.json

@@ -232,6 +232,12 @@
 			}
 		}
 	}],
+	"preloadRule": {
+	    "pages/index/index": {
+	      "network": "all",
+	      "packages": ["pages2"]
+	    }
+	  },
 	"globalStyle": {
 		"navigationBarTextStyle": "black",
 		"navigationBarTitleText": "WeChat",