Csharp 如何只允许使用 Action 方法修改 Class 属性

您可以通过声明getter-only属性的接口公开 colored颜色 .然后，实现也可以具有setter:

public interface IColors
{
    ConsoleColor Primary { get; }
    ConsoleColor Default { get; }
    ConsoleColor Input { get; }
    ConsoleColor Success { get; }
    ConsoleColor Error { get; }
    ConsoleColor Highlight { get; }
}

public class Colors : IColors
{
    public ConsoleColor Primary { get; set; } = ConsoleColor.White;
    public ConsoleColor Default { get; set; } = ConsoleColor.Gray;
    public ConsoleColor Input { get; set; } = ConsoleColor.Gray;
    public ConsoleColor Success { get; set; } = ConsoleColor.Green;
    public ConsoleColor Error { get; set; } = ConsoleColor.Red;
    public ConsoleColor Highlight { get; set; } = ConsoleColor.Blue;
}

如下配置:

public static class UI
{
    public static readonly IColors Colors = new Colors();

    public static void ConfigureColors(Action<Colors> modification)
    {
        modification.Invoke((Colors)Colors);
    }
}

用法示例:

var primary = UI.Colors.Primary;       // Okay

UI.Colors.Primary = ConsoleColor.Gray; // Error CS0200  Property or indexer 
                                       // 'ConfigurableColors.IColors.Primary'
                                       // cannot be assigned to --it is read only