fix app go.finish

@@ -574,6 +574,18 @@ const yoho = {
 
     $appLink.href = url;
     $appLink.click();
+  },
+
+  finishPage(args, success, fail) {
+    if (this.isYohoBuy && window.yohoInterface) {
+      window.yohoInterface.triggerEvent(success || nullFun, fail || nullFun, {
+        method: 'go.finish',
+        arguments: args
+      });
+    } else {
+
+      // tip(tipInfo);
+    }
   }
 };
 

@@ -80,7 +80,7 @@ export default {
       ];
     },
     onBackClick() {
-      this.$yoho.goBack({});
+      this.$yoho.finishPage({});
     },
     onHelpClick() {
       this.$yoho.goNewPage({