myClass数组可以是集合吗? [英] myClass array can be a collection?

问题描述

我有一个Book类，具有许多属性.我定义了一个Book类数组(Book [] books)，以便每次添加或搜索一本书时，我都会有一本书及其所有属性值，但是此数组不是动态的，本身并不关心索引，并且不会像

i have a Book class with many attributes. i defined a Book class array(Book[] books) so that each time i add or search book, i will have a book with all its attributes values but this array is not dynamic, does not care of index byitsself and does not search like collections, i have to code to maintain all these things so is there any way that a Book[] array is collection too?

推荐答案

您可以尝试以下操作. br/>
列表<书> booksList = new List< Book> ;;
booksList = books.ToList();

编辑-请不要通过"pre"/"code"标签进行编辑，否则会干扰代码.

You may try as below.

List<Book> booksList = new List<Book>;
booksList = books.ToList();

Edit - Please don''t edit by "pre"/"code" tag, it distrupting the code.

不是真的，但是Collection可以是Array-如果您定义

Not really, but a Collection can be an Array - if you define a

List<string> myList = new List<string>();

，那么您可以使用myList [6](如果存在)，也可以使用 List.ToArray [

then you can use myList[6] provided it exists, or you can convert it to an array with the List.ToArray[^] method.

Alternatively, you can convert an array to a List very easily by using the List.AddRange method - but I would probably start with a list instead.

Yes an array is a collection[^]. Array implements ICollection, IList, IEnumerable, however methods which adds, inserts or removes elements will cast a NotSupportedException, e.g. IList.Add.

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