"```csharp using System; using System.Collections.Generic; public class ElementTemplate { public string Name { get; set; } public string Content { get; set; } } public class ElementTemplateManager { private Dictionary<string, ElementTemplate> templates; public ElementTemplateManager() { templates = new Dictionary<string, ElementTemplate>(); } public void AddTemplate(string name, string content) { if (!templates.ContainsKey(name)) { templates.Add(name, new ElementTemplate { Name = name, Content = content }); } else { templates[name].Content = content; // Update content if template already exists } } public ElementTemplate GetTemplate(string name) { if (templates.TryGetValue(name, out ElementTemplate template)) { return template; } return null; // Return null if template not found } public void RemoveTemplate(string name) { if (templates.ContainsKey(name)) { templates.Remove(name); } } public void DisplayTemplates() { foreach (var template in templates.Values) { Console.WriteLine($"Template Name: {template.Name}, Content: {template.Content}"); } } } public class Program { public static void Main() { ElementTemplateManager manager = new ElementTemplateManager(); manager.AddTemplate("Button", "<button>Click Me</button>"); manager.AddTemplate("Input", "<input type='text' />"); manager.DisplayTemplates(); ElementTemplate buttonTemplate = manager.GetTemplate("Button"); if (buttonTemplate != null) { Console.WriteLine($"Retrieved Template: {buttonTemplate.Content}"); } manager.RemoveTemplate("Input"); Console.WriteLine("After removing Input template:"); manager.DisplayTemplates(); } } ``` 这个C#例子中，`ElementTemplateManager`类用于管理模板，包括添加、获取、移除和显示模板。`ElementTemplate`类用于存储模板的名称和内容。`Program`类中的`Main`方法演示了如何使用`ElementTemplateManager`。"