fixed:版本比较

@@ -114,11 +114,29 @@ const getChannel = function() {
     });
 };
 
+const miniVersion = function (miniVersion) {
+    let appVersion = cookie.get('app_version');
+    let miniVersions = miniVersion.split('.');
+
+    if (appVersion && typeof appVersion === 'string') {
+        let versions = appVersion.split('.');
+
+        if (versions.length === 3 &&
+            (+versions[0] > +miniVersions[0] ||
+            (+versions[0] === +miniVersions[0] && +versions[1] > +miniVersions[1]) ||
+            (+versions[0] === +miniVersions[0] && +versions[1] === +miniVersions[1] && +versions[2] >= +miniVersions[2]))) {
+            return true;
+        }
+    }
+    return false;
+};
+
 export default {
     getImgHost,
     getImgUrl,
     applySuccuss,
     visibilitychange,
     getChannel,
-    replaceHttp
+    replaceHttp,
+    miniVersion
 };

@@ -47,7 +47,7 @@ function BrandHrefBinding(el, binding) {
 
         if (yoho.isYohoBuy && !shopId) {
             yoho.ready(function () {
-                if (cookie.get('app_version') >= '6.5.5') {
+                if (util.miniVersion('6.5.5')) {
                     let { name } = binding.value;
 
                     let goParams = {

@@ -44,6 +44,7 @@ import ResourceNewProductList from 'components/resources/resource-new-product-li
 import ResourceTfGoodsList from 'components/resources/resource-tfgoods-list';
 import {SearchSlider} from 'components/search';
 import {mapState} from 'vuex';
+import util from 'common/util';
 import {HomeSlider} from './components';
 import {REPORT_YAS} from 'store/yoho/types';
 import ResourceBox from 'components/resources/resource-box';
@@ -123,17 +124,8 @@ export default {
     },
     mounted() {
         if (this.$yoho.isAndroid) {
-            let appVersion = this.$cookie.get('app_version');
-
-            if (appVersion && typeof appVersion === 'string') {
-                let versions = appVersion.split('.');
-
-                if (versions.length === 3 &&
-                    (+versions[0] > 6 ||
-                    (+versions[0] === 6 && +versions[1] > 5) ||
-                    (+versions[0] === 6 && +versions[1] === 5 && +versions[2] > 1))) {
-                    this.showBack = true;
-                }
+            if (util.miniVersion('6.5.2')) {
+                this.showBack = true;
             }
         } else {
             this.showBack = true;