空類型 的英文怎麼說
中文拼音 [kōnglèixíng]
空類型
英文
void type-
The two boxed objects are identical to those created by boxing non - nullable types. and, like non - nullable boxed types, can be unboxed into nullable types, like this
並且，像非可空裝箱類型一樣，可以將它們取消裝箱，使其成為可空類型，如下所示：C programming guide boxing nullable types c programming guide
裝箱可空類型（ c #編程指南）Nullable type can contain three different values
可空類型可以包含三個不同的值：The most important members of a nullable type are its
可空類型的最重要成員是它的This sample demonstrates how to use nullable types
本示例演示可空類型的使用情況。The default value for a nullable type variable sets
可空類型變量的默認值將For more information on nullable types, see
有關可空類型的更多信息，請參見Nullable types have the following characteristics
可空類型具有以下特性：True. for more information about nullable types, see
（有關可空類型的更多信息，請參見The method is called on an empty type handle
該方法在空類型句柄上調用。Is nullable, whereas a value type such as
的引用類型就是可空類型，而類似For more information on nullable types in c, see
有關c #中的可空類型的更多信息，請參見C programming guide using nullable types c programming guide
使用可空類型（ c #編程指南）The nullable type modifier enables c to create value - type variables that indicate an undefined value
可空類型修飾符使c #能夠創建表示未定義值的值類型變量。The predefined unary and binary operators and any user - defined operators that exist for value types may also be used by nullable types
可空類型還可以使用預定義的一元和二元運算符，以及現有的任何用戶定義的值類型運算符。Including the numeric types as well as the struct type and the nullable type, are all value types
（包括數值類型以及結構類型和可空類型）都屬于值類型。For an example of when you might use a nullable type, consider how an ordinary boolean variable can have two values : true and false
有關可能使用可空類型的示例，請考慮普通的布爾變量如何能夠具有兩個值： true和false 。You can declare procedures with nullable types as parameters, and you can return a nullable type from a
可以用可空類型作為參數來聲明過程，也可以從Value types can be extended to take either their normal values or a null value
可以擴展值類型，使它們具有正常值或空值。此類擴展稱為可空類型。Nullable types allow a variable to contain a value that is undefined
可空類型允許變量包含未定義的值。分享友人