C# 6.0 Feature list

最新推荐文章于 2025-09-11 10:06:18 发布

转载最新推荐文章于 2025-09-11 10:06:18 发布 · 125 阅读

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原文链接：http://www.cnblogs.com/guangfengli/p/5580484.html

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#c#

本文介绍了C#中新增的多种语法特性，包括自动属性初始化、仅获取属性、结构体的无参数构造函数、静态成员使用、字典初始化、异步方法在catch/finally块中的使用等，并探讨了这些特性如何简化开发流程。

Feature	Example	C#	VB
Auto-property initializers	public int X { get; set; } = x;	Added	Exists
Getter-only auto-properties	public int Y { get; } = y;	Added	Added
Ctor assignment to getter-only autoprops	Y = 15	Added	Added
Parameterless struct ctors	Structure S : Sub New() : End Sub : End Structure	Added	Added
Using static members	using System.Console; … Write(4);	Added	Exists
Dictionary initializer	new JObject { ["x"] = 3, ["y"] = 7 }	Added	No
Await in catch/finally	try … catch { await … } finally { await … }	Added	No
Exception filters	catch(E e) if (e.Count > 5) { … }	Added	Exists
Partial modules	Partial Module M1	N/A	Added
Partial interfaces	Partial Interface I1	Exists	Added
Multiline string literals	"Hello<newline>World"	Exists	Added
Year-first date literals	Dim d = #2014-04-03#	N/A	Added
Line continuation comments	Dim addrs = From c in Customers ' comment	N/A	Added
TypeOf IsNot	If TypeOf x IsNot Customer Then …	N/A	Added
Expression-bodied members	public double Dist *=> Sqrt(X X + Y * Y);**	Added	No
Null propagation	customer?.Orders?[5]?.$price	Added	Added
String interpolation	$"{p.First} {p.Last} is {p.Age} years old."	Added*	Planned
nameof operator	string s = nameof(Console.Write);	Added*	Planned
#pragma	#Disable Warning BC40008	Added	Added
Smart name resolution		N/A	Added
ReadWrite props can implement ReadOnly		Exists	Added
#region inside methods		Exists	Added
Overloads inferred from Overrides		N/A	Added
CObj in attributes		Exists	Added
CRef and parameter name		Exists	Added
Extension Add in collection initializers		Added	Exists
Improved overload resolution		Added	N/A