28 lines
585 B
Swift
28 lines
585 B
Swift
//
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// Created by Jiandan on 2018/10/12.
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// Copyright (c) 2018 Jiandan. All rights reserved.
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//
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import Foundation
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struct Page {
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/// 存储前进 url
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private var forwardArray = [String]()
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/// 存储后退 url
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private var backArray = [String]()
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var currentURL: String? { return forwardArray.last }
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init(url: String) {
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forwardArray.append(url)
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}
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/// 前进
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mutating func goForward(url: String) {
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forwardArray.append(url)
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}
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/// 后退
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mutating func goBack() {
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backArray.append(forwardArray.popLast()!)
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}
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}
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