使用LINQ從列表中刪除元素<T>假設我有LINQ查詢，例如：var authors = from x in authorsList where x.firstname == "Bob"
select x;鑒于authorsList是類型的List<Author>，如何刪除Author來自authorsList中的查詢返回的authors?或者，換句話說，我如何刪除所有的名字等于Bob從authorsList?注：為問題的目的，這是一個簡化的例子。
3 回答
海綿寶寶撒
TA貢獻1809條經驗 獲得超8個贊
authorsList = authorsList.Where(x => x.FirstName != "Bob").ToList();
authorsListRemoveAll:
authorsList.RemoveAll(x => x.FirstName == "Bob");
var setToRemove = new HashSet<Author>(authors);authorsList.RemoveAll(x => setToRemove.Contains(x));
泛舟湖上清波郎朗
TA貢獻1818條經驗 獲得超3個贊
var authorsList = new List<Author>(){
new Author{ Firstname = "Bob", Lastname = "Smith" },
new Author{ Firstname = "Fred", Lastname = "Jones" },
new Author{ Firstname = "Brian", Lastname = "Brains" },
new Author{ Firstname = "Billy", Lastname = "TheKid" }};
var authors = authorsList.Where(a => a.Firstname == "Bob");
authorsList = authorsList.Except(authors).ToList();
authorsList = authorsList.Except(authorsList.Where(a=>a.Firstname=="Billy")).ToList();- 3 回答
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