using System;
using System.Collections.Generic;namespace A4_Builder_生成器_對象創建型模式
{// 產品類：最終要構建的復雜對象public class Computer{public string CPU { get; set; }public string GPU { get; set; }public int RAM { get; set; } // GBpublic List<string> Storage { get; } = new List<string>();public List<string> Peripherals { get; } = new List<string>();public void DisplayConfiguration(){Console.WriteLine("計算機配置：");Console.WriteLine($"- CPU: {CPU}");Console.WriteLine($"- GPU: {GPU ?? "集成顯卡"}");Console.WriteLine($"- RAM: {RAM}GB");Console.WriteLine($"- 存儲設備: {string.Join(", ", Storage)}");Console.WriteLine($"- 外設: {(Peripherals.Count > 0 ? string.Join(", ", Peripherals) : "無")}");Console.WriteLine("\n");}}// 抽象生成器接口public interface IComputerBuilder{void SetCPU(string model);void SetGPU(string model);void SetRAM(int size);void AddStorage(string device);void AddPeripheral(string device);Computer Build();}// 具體生成器：游戲電腦配置public class GamingComputerBuilder : IComputerBuilder{private Computer _computer = new Computer();public void SetCPU(string model) => _computer.CPU = $"{model} (超頻版)";public void SetGPU(string model) => _computer.GPU = $"{model} RTX";public void SetRAM(int size) => _computer.RAM = size >= 16 ? size : 16; // 最低16GBpublic void AddStorage(string device){if (!device.Contains("SSD"))device += " SSD";_computer.Storage.Add(device);}public void AddPeripheral(string device){if (device == "鼠標") device = "游戲鼠標";if (device == "鍵盤") device = "機械鍵盤";_computer.Peripherals.Add(device);}public Computer Build() => _computer;}// 具體生成器：辦公電腦配置public class OfficeComputerBuilder : IComputerBuilder{private Computer _computer = new Computer();public void SetCPU(string model) => _computer.CPU = $"{model} (節能版)";public void SetGPU(string model) => _computer.GPU = "集成顯卡";public void SetRAM(int size) => _computer.RAM = size >= 8 ? size : 8; // 最低8GBpublic void AddStorage(string device) => _computer.Storage.Add(device);public void AddPeripheral(string device) => _computer.Peripherals.Add(device);public Computer Build() => _computer;}// 指揮者：控制構建流程public class ComputerDirector{public Computer BuildHighEndGamingPC(IComputerBuilder builder){builder.SetCPU("Intel i9-13900K");builder.SetGPU("NVIDIA RTX 4090");builder.SetRAM(32);builder.AddStorage("1TB NVMe SSD");builder.AddStorage("2TB SATA SSD");builder.AddPeripheral("鼠標");builder.AddPeripheral("鍵盤");builder.AddPeripheral("電競顯示器");return builder.Build();}public Computer BuildStandardOfficePC(IComputerBuilder builder){builder.SetCPU("Intel i5-12400");builder.SetRAM(16);builder.AddStorage("512GB SSD");builder.AddPeripheral("鼠標");builder.AddPeripheral("鍵盤");return builder.Build();}}// 客戶端代碼class Program{static void Main(string[] args){var director = new ComputerDirector();// 構建游戲電腦var gamingBuilder = new GamingComputerBuilder();var gamingPC = director.BuildHighEndGamingPC(gamingBuilder);gamingPC.DisplayConfiguration();// 構建辦公電腦var officeBuilder = new OfficeComputerBuilder();var officePC = director.BuildStandardOfficePC(officeBuilder);officePC.DisplayConfiguration();// 自定義構建var customBuilder = new OfficeComputerBuilder();customBuilder.SetCPU("AMD Ryzen 7 5800X");customBuilder.SetGPU("AMD Radeon RX 6700 XT");customBuilder.SetRAM(64);customBuilder.AddStorage("2TB NVMe SSD");customBuilder.AddPeripheral("繪圖板");var customPC = customBuilder.Build();customPC.DisplayConfiguration();}}
}

計算機配置：
- CPU: Intel i9-13900K (超頻版)
- GPU: NVIDIA RTX 4090 RTX
- RAM: 32GB
- 存儲設備: 1TB NVMe SSD SSD, 2TB SATA SSD SSD
- 外設: 游戲鼠標, 機械鍵盤, 電競顯示器計算機配置：
- CPU: Intel i5-12400 (節能版)
- GPU: 集成顯卡
- RAM: 16GB
- 存儲設備: 512GB SSD
- 外設: 鼠標, 鍵盤計算機配置：
- CPU: AMD Ryzen 7 5800X (節能版)
- GPU: AMD Radeon RX 6700 XT
- RAM: 64GB
- 存儲設備: 2TB NVMe SSD
- 外設: 繪圖板

?