單項選擇題

You are developing a custom-collection class.You need to create a method in your class. You need to ensure that the method you create in your class returns a type that is compatible with the Foreach statement.
Which criterion should the method meet？（）

A.The method must return a type of either IEnumerator or IEnumerable.
B.The method must return a type of IComparable.
C.The method must explicitly contain a collection.
D.The method must be the only iterator in the class.

你可能感興趣的試題

單項選擇題

最近，您已完成創(chuàng)建的應用程序使用應用程序配置文件。
此配置文件包含一段名為 EmployeeSection，其中包含雇員的元素。
您需要查看 EmployeeSection 元素的內容。
您需要確保 EmployeeSection 元素輸出到控制臺及其內容。
你應該做什么？（）

A.
B.
C.
D.

單項選擇題

You need to identify a type that meets the following criteria：
Is always a number.
Is not greater than 65，535.
Which type should you choose？（）

A.System.UInt16
B.int
C.System.String
D.System.IntPtr

日韩欧美亚洲 _ 欧美亚洲一区 _ 日本亚洲欧美 _ 亚洲精品欧美 国产白袜脚足J棉袜在线观看_亚洲熟妇av一区二区三区_久久天天躁狠狠躁夜_精品众筹模特私拍在线

You are developing a custom-collection class.You need to create a method in your class. You need to ensure that the method you create in your class returns a type that is compatible with the Foreach statement. Which criterion should the method meet？（）

你可能感興趣的試題

You need to identify a type that meets the following criteria： Is always a number. Is not greater than 65，535. Which type should you choose？（）

日韩欧美亚洲 _ 欧美亚洲一区 _ 日本亚洲欧美 _ 亚洲精品欧美国产白袜脚足J棉袜在线观看_亚洲熟妇av一区二区三区_久久天天躁狠狠躁夜_精品众筹模特私拍在线

You are developing a custom-collection class.You need to create a method in your class. You need to ensure that the method you create in your class returns a type that is compatible with the Foreach statement.
Which criterion should the method meet？（）

You need to identify a type that meets the following criteria：
Is always a number.
Is not greater than 65，535.
Which type should you choose？（）