删除冗余代码

@@ -181,7 +181,7 @@ class Center extends PureComponent {
             activeTabKey={tabKey}
             onTabChange={this.onTabChange}
           >
-            {children}
+            {children || tabKey}
           </Card>
         </Col>
       </Row>

 export default {
   plugins: [
-    ['umi-plugin-block-dev', {
-      layout: 'ant-design-pro',
-    }],
-    ['umi-plugin-react', {
-      dva: true,
-      locale: true,
-      antd: true,
-    }]
+    [
+      'umi-plugin-block-dev',
+      {
+        layout: 'ant-design-pro',
+      },
+    ],
+    [
+      'umi-plugin-react',
+      {
+        dva: true,
+        locale: true,
+        antd: true,
+      },
+    ],
   ],
-}
+};

@@ -11,15 +11,8 @@ import styles from './style.less';
 
 const { Pie, WaterWave, Gauge, TagCloud } = Charts;
 
-
 const targetTime = new Date().getTime() + 3900000;
 
-// use permission as a parameter
-const havePermissionAsync = new Promise(resolve => {
-  // Call resolve on behalf of passed
-  setTimeout(() => resolve(), 300);
-});
-
 @connect(({ monitor, loading }) => ({
   monitor,
   loading: loading.models.monitor,