为Console添加扩展方法

Console中都是静态方法，有的时候我们可以需要一些特别的颜色和状态显示，
需要不停的重置Console的字体，一行行写代码有的时候我会觉得麻烦。
这里提供一种思路，学习Linq里面的链式调用，我们可以做到更多。

namespace System
{
    public static class ConsoleX
    {
        private static readonly IConsoleExecutable executor;

        static ConsoleX()
        {
            executor = new ConsoleExecutor();
        }

        public static IConsoleExecutable WriteLineColor(ConsoleColor color, string message, params object[] para)
        {
            return executor.WriteLineColor(color, message, para);
        }

        public static IConsoleExecutable WriteColor(ConsoleColor color, string message, params object[] para)
        {
            return executor.WriteColor(color, message, para);
        }

        public static IConsoleExecutable Error(Exception e)
        {
            return executor.Error(e);
        }

        private class ConsoleExecutor : IConsoleExecutable
        {
            #region IConsoleExecutable Members

            public IConsoleExecutable WriteLineColor(ConsoleColor color, string message, params object[] para)
            {
                Console.ForegroundColor = color;
                Console.WriteLine(message, para);
                Console.ResetColor();
                return this;
            }

            public IConsoleExecutable WriteColor(ConsoleColor color, string message, params object[] para)
            {
                Console.ForegroundColor = color;
                Console.Write(message, para);
                Console.ResetColor();
                return this;
            }

            public IConsoleExecutable Error(Exception e)
            {
                WriteLineColor(ConsoleColor.Red, e.ToString());
                return this;
            }

            #endregion
        }
    }

    public interface IConsoleExecutable
    {
        IConsoleExecutable WriteLineColor(ConsoleColor color, string message, params object[] para);

        IConsoleExecutable WriteColor(ConsoleColor color, string message, params object[] para);

        IConsoleExecutable Error(Exception e);
    }
}