湖边的白杨树

摘要： 简单一句话： Dictionary 是 由 KeyValuePair结构 组成的集合TheDictionary.Enumerator.Currentproperty returns an instance of this type.Theforeachstatement of the C# language (for eachin C++,For Eachin Visual Basic) requires the type of the elements in the collection. Since each element of a collection based onIDiction 阅读全文