[英]c#: getter/setter
I saw something like the following somewhere, and was wondering what it meant.我在某处看到类似下面的内容,想知道它是什么意思。 I know they are getters and setters, but want to know why the string Type is defined like this.
我知道他们是 getter 和 setter,但想知道为什么字符串类型是这样定义的。 Thanks for helping me.
谢谢你帮助我。
public string Type { get; set; }
Those are Auto-Implemented Properties (Auto Properties for short).这些是自动实现的属性(简称自动属性)。
The compiler will auto-generate the equivalent of the following simple implementation:编译器将自动生成以下简单实现的等效项:
private string _type;
public string Type
{
get { return _type; }
set { _type = value; }
}
That is an auto-property and it is the shorthand notation for this:这是一个自动属性,它是它的简写符号:
private string type;
public string Type
{
get { return this.type; }
set { this.type = value; }
}
In C# 6:在 C# 6 中:
It is now possible to declare the auto-properties just as a field:现在可以将自动属性声明为字段:
public string FirstName { get; set; } = "Ropert";
Read-Only Auto-Properties只读自动属性
public string FirstName { get;} = "Ropert";
public string Type { get; set; }
is no different than doing和做没有什么不同
private string _Type;
public string Type
{
get { return _Type; }
set { _Type = value; }
}
This means that the compiler defines a backing field at runtime.这意味着编译器在运行时定义了一个支持字段。 This is the syntax for auto-implemented properties.
这是自动实现属性的语法。
More Information: Auto-Implemented Properties更多信息: 自动实现的属性
It's an automatically backed property, basically equivalent to:它是一个自动支持的属性,基本上相当于:
private string type;
public string Type
{
get{ return type; }
set{ type = value; }
}
These are called auto properties.这些称为自动属性。
http://msdn.microsoft.com/en-us/library/bb384054.aspx http://msdn.microsoft.com/en-us/library/bb384054.aspx
Functionally (and in terms of the compiled IL), they are the same as properties with backing fields.在功能上(并且就编译的 IL 而言),它们与具有支持字段的属性相同。
You can also use a lambda expression您还可以使用 lambda 表达式
public string Type
{
get => _type;
set => _type = value;
}
With the release of C# 6, you can now do something like this for private properties.随着 C# 6 的发布,您现在可以对私有财产执行类似的操作。
public constructor()
{
myProp = "some value";
}
public string myProp { get; }
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