Hash Set<T>.To Builder 方法
创建一个其内容与此集相同，并且可使用标准可变接口在多个操作之间有效转变的不可变哈希集。Creates an immutable hash set that has the same contents as this set and can be efficiently mutated across multiple operations by using standard mutable interfaces.
public: System::Collections::Immutable::ImmutableHashSet<T>::Builder ^ ToBuilder();
public System.Collections.Immutable.ImmutableHashSet<T>.Builder ToBuilder ();
member this.ToBuilder : unit -> System.Collections.Immutable.ImmutableHashSet<'T>.Builder
Public Function ToBuilder () As ImmutableHashSet(Of T).Builder
一个其内容与此集相同，并且可使用标准可变接口在多个操作之间有效转变的集。A set with the same contents as this set that can be efficiently mutated across multiple operations by using standard mutable interfaces.
这是一项 O （1）操作，只会导致一个（小）内存分配。This is an O(1) operation and results in only a single (small) memory allocation. 返回的可变集合不是线程安全的。The mutable collection that is returned is not thread safe.