我想要将Add()整数加入到集合中,并且还检查存在.载有().
也可以将它们作为一个字符串显示在列表中,即. “1,5,10,21”.
解决方法
The
HashSet<T>class provides high-performance set operations. A set is a collection that contains no duplicate elements,and whose elements are in no particular order…The capacity of a
HashSet<T>object is the number of elements that the object can hold. AHashSet<T>object’s capacity automatically increases as elements are added to the object.The
HashSet<T>class is based on the model of mathematical sets and provides high-performance set operations similar to accessing the keys of the 07001 or 07002 collections. In simple terms,theHashSet<T>class can be thought of as a 07001 collection without values.A
HashSet<T>collection is not sorted and cannot contain duplicate elements…
