我有一个Book类,里面有成员titel和author。 我还有一本书籍清单,我想要找回写了大部分书籍的作者(大多数时候出现在列表中)。它在C#中。谢谢!
像这样:
书籍清单:
作者 - Titel
author1 - Peter Pan
author2 - 闪亮
author2 - IT
author3 - 动物农场
返回author2。
答案 0 :(得分:2)
您可以使用LINQ
internal class Book
{
public string Author;
public string Title;
}
List<Book> listOfBooks = new List<Book>()
{
new Book() {Author = "author1", Title = "Peter Pan"},
new Book() {Author = "author2", Title = "The Shining"},
new Book() {Author = "author2", Title = "IT"},
new Book() {Author = "author3", Title = "Animal Farm"},
};
var author = listOfBooks.GroupBy(x => x.Author)
.OrderByDescending(g => g.Count())
.Take(1)
.Select(g => g.Key);