update 导入拆分结果，国内海外标准细节调整

src/views/standardRegulationLibrary/overseasStandard/OverseasStandardList.vue

@@ -275,7 +275,13 @@ export default {
      */
     initTreeData () {
       this.treeLoading = true
-      getOverseasStandardSystem({ nodeName: this.treeInput }).then(res => {
+      const params = {
+        nodeName: this.treeInput
+      }
+      if (!params.nodeName) {
+        delete params.nodeName
+      }
+      getOverseasStandardSystem(params).then(res => {
         this.treeData = []
         this.selectedTreeKeys = []
         this.selectedTreeNodeCodes = []
@@ -593,7 +599,7 @@ export default {
         // 销毁这个提示
         modalLoading.destroy()
       })
-    },
+    }
   }
 }
 </script>