Book book2 = new Book { Id = 2, Name = "Book-2", Price = 20 }; Book book3 = new Book { Id = 3, Name = "Book
new Book("book-2", "Hitchhiker's Guide to the Galaxy", 208, "author-2"), new Book("book
new Book("book-2", "Hitchhiker's Guide to the Galaxy", 208, "author-2"), new Book("book
在这项分析中,使用了来自Book-3的3900万个token。