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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