计算IEnumerable <T>的最佳方法

int count = enumerable.Count();

int count = enumerable.Count(x => x.SomeProperty == someValue);

int sum = enumerable.Sum(x => x.SomeProperty);

double average = enumerable.Average(x => x.SomeProperty);

T max = enumerable.MaxBy(x => x.SomeProperty);

T min = enumerable.MinBy(x => x.SomeProperty);

T[] array = enumerable.ToArray();
List<T> list = enumerable.ToList();

IEnumerable<T> sortedEnumerable = enumerable.OrderBy(x => x.SomeProperty);

IEnumerable<IGrouping<TKey, T>> groupedEnumerable = enumerable.GroupBy(x => x.SomeProperty);

IEnumerable<T> filteredEnumerable = enumerable.Where(x => x.SomeProperty == someValue);

IEnumerable<TResult> projectedEnumerable = enumerable.Select(x => x.SomeProperty);

TResult aggregatedResult = enumerable.Aggregate((accumulator, current) => accumulator.SomeProperty + current.SomeProperty);