代码练习在 C# 中得到一个 object （包含匿名对象）的属性和属性值

代码能说明一切：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace DearBruce.ConAppTest
{
    enum Color
    {
        Red,
        Green,
        Blue
    }

    struct KeyValuePair<TKey, TValue>
    {
        public TKey Key { get; set; }

        public TValue Value { get; set; }
    }

    class Student
    {
        public Guid Id { get; set; }

        public string Name { get; set; }

        public DateTime Birthday { get; set; }
    }

    class Program
    {
        static void Main(string[] args)
        {
            string[] items = new string[]
            {
                AnonymousObject.Inspect(null), // (null)
                AnonymousObject.Inspect(new {}), // no properties
                AnonymousObject.Inspect(new 
                { 
                    Id = Guid.NewGuid(), 
                    Name = "张三", 
                    Birthday = new DateTime(1987,5,6) 
                }),    
                // { Id: 2117c3cf-f99c-4636-9390-900fea0c085d, Name: 张三, Birthday: 1987/5/6 0:00:00 }
                AnonymousObject.Inspect(Color.Red), // no properties
                AnonymousObject.Inspect(
                new KeyValuePair<Guid, string>() 
                { 
                    Key = Guid.NewGuid(), 
                    Value = "HelloWorld" 
                }),   
                // { Key: 67faae54-b6bd-4702-9175-54f6291a7199, Value: HelloWorld }
                AnonymousObject.Inspect(
                new Student 
                { 
                    Id = Guid.NewGuid(), 
                    Name = "张三", 
                    Birthday = new DateTime(1987, 5, 6)
                })  
                // { Id: 8e189b10-0702-4927-8f65-81c86dcc33bd, Name: 张三, Birthday: 1987/5/6 0:00:00 }
            };
            CommonHelper.Show(items);
        }
    }

    public static class AnonymousObject
    {
        public static string Inspect(object obj)
        {
            if (obj == null)
            {
                return "(null)";
            }

            object[] args = Enumerable.Empty<Object>().ToArray();
            IEnumerable<string> values = obj.GetType()
                                            .GetProperties()
                                            .Select(prop => String.Format("{0}: {1}", prop.Name, prop.GetValue(obj, args)));

            if (!values.Any())
            {
                return "(no properties)";
            }

            return "{ " + values.Aggregate((left, right) => left + ", " + right) + " }";
        }
    }
}

 

运行截图：

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谢谢浏览！