List<T>.FindAll(Predicate<T>) 메서드

https://docs.microsoft.com/ko-kr/dotnet/api/system.collections.generic.list-1.findall?f1url=https%3A%2F%2Fmsdn.microsoft.com%2Fquery%2Fdev16.query%3FappId%3DDev16IDEF1%26l%3DKO-KR%26k%3Dk(System.Collections.Generic.List%601.FindAll);k(TargetFrameworkMoniker-.NETFramework,Version%3Dv4.7.2);k(DevLang-csharp)%26rd%3Dtrue&view=netframework-4.8

List.FindAll(Predicate) 메서드 (System.Collections.Generic)