axios data none fix

src/plugins/axios.js

@@ -82,7 +82,7 @@ const errorDataCallback = error => {
  */
 const successCallback = data => {
   if (data.code === "200") {
-    return data.data || data.data === 0 ? data.data : { success: true };
+    return data.data;
   } else {
     throw new Error(errorDataCallback(data));
   }