试题详情
- 单项选择题 You are implementing an ASP.NET application. You add the following code segment.
You need to add code to return a list of all Person objects except those with a UserId that is contained in the secretUsers list. The resulting list must not contain duplicates. Which code segment should you use？（） A、var secretPeople = （from p in allPeople from u in secretUsers where p.UserId == u select p）.Distinct（）； return allPeople.Except（secretPeople）；
B、return from p in allPeople from u in secretUsers where p.UserId != u select p；
C、return （from p in allPeople from u in secretUsers where p.UserId != u select p）.Distinct（）；
D、List
people = new List （ from p in allPeople from u in secretUsers where p.UserId != u select p）； return people.Distinct（）；
- A
关注下方微信公众号，在线模考后查看
热门试题