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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 Nullable types are a special case of generic types 下表顯示用于各種類型的For more information on nullable types , see 有關(guān)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(guān)可空類型的更多信息,請參見 For more information on nullable types in c , see 有關(guān)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)
In programming, nullable types are a feature of some statically-typed programming languages which allows a data type to be set to the special value NULL instead of their common range of possible values.
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