1) 修复优惠券列表初始化页面请求两次

src/components/tabPage/main.js

@@ -15,11 +15,7 @@ export default class tabbar extends React.Component {
     };
   }
   componentDidMount() {
-    if (!this.props.first) {
-      this.tabChange(0);
-    } else {
-      this.setState({ activeIndex: 0 });
-    }
+    this.tabChange(0);
   }
 
   tabChange(index) {
@@ -37,7 +33,7 @@ export default class tabbar extends React.Component {
       arr[i] = temp;
     }
     this.setState({ tabList: arr });
-    if (this.state.tabList.length > 1) {
+    if (this.state.tabList.length > 1 && this.props.first !== true) {
       this.props.tabChange(index);
     }
   }