LINQ 面试题与答案
问题 16. Explain the usage of the 'Concat' method in LINQ.
'Concat' is used to concatenate two sequences, creating a new sequence that contains elements from both sequences.
Example:
var result = sequence1.Concat(sequence2);
这有帮助吗？
添加评论
查看评论
问题 17. What is the purpose of the 'Distinct' method in LINQ?
'Distinct' is used to eliminate duplicate elements from a sequence and return a new sequence with unique elements.
Example:
var result = myList.Distinct();
这有帮助吗？
添加评论
查看评论
问题 18. Explain the concept of 'immediate execution' in LINQ.
'Immediate execution' means that the query is executed and the results are retrieved immediately when the query is defined.
Example:
var result = myList.ToList(); // Immediate execution
这有帮助吗？
添加评论
查看评论
问题 19. What is the purpose of the 'Zip' method in LINQ?
'Zip' is used to merge two sequences element-wise, creating a new sequence of pairs based on the elements at the same index.
Example:
var result = sequence1.Zip(sequence2, (x, y) => x + y);
这有帮助吗？
添加评论
查看评论
问题 20. Explain the use of 'AsEnumerable' in LINQ.
'AsEnumerable' is used to cast a sequence to its enumerable form, which can be useful in scenarios where you want to force the query to be executed on the client side rather than on the server side.
这有帮助吗？
添加评论
查看评论
用户评价最有帮助的内容：