desc: 屏蔽获取不到list 报错问题

src/store/modules/map.js

@@ -319,10 +319,18 @@ const map = {
             return state.map;
         },
         psdList: (state) => {
-            return state.map.psdList;
+            if (state.map) {
+                return state.map.psdList;
+            } else {
+                return [];
+            }
         },
         espList: (state) => {
-            return state.map.espList;
+            if (state.map) {
+                return state.map.espList;
+            } else {
+                return [];
+            }
         },
         lineCode: (state) => {
             if (state.map && state.map.skinVO) {