我创建了一个服务类来读取JSON文件并将其内容存储在类中。staticgetAllKurals()async{Mapdata=await_parseJsonFromAssets();returnResponse.fromJsonMap(data);}staticFuturegetRandomKural()async{Mapdata=await_parseJsonFromAssets();Responseresponse=Response.fromJsonMap(data);returnFuture.value(response.kurals[getRandomKuralNumber()
