StackOverflow 文件 C# Language 教程 運算子 集體成員運算子會員訪問 集體成員運算子會員訪問 Created: November-22, 2018 var now = DateTime.UtcNow; //accesses member of a class. In this case the UtcNow property. 類成員操作符函式呼叫空融合運算子