/* * Copyright (c) 2023 Huawei Device Co., Ltd. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import Foundation class Animal { public var name: String = "Animal"; init() { } func sayHello() { } } class Dog: Animal { public var age: Int; init(_ age: Int) { self.age = age; super.init(); } } let dog = Dog(6); var now = Date().timeIntervalSince1970; for _ in 0..<1000000000 { dog.sayHello(); var age = dog.age; var s = dog.name; } now = Date().timeIntervalSince1970 - now; print(now);