LINQ而不是foreach和list.addrange

Question

有谁知道以下代码的LINQ代码是什么？:

foreach (Bed bed in field.GetBeds())
{
    asparaguses.AddRange(bed.GetAsparaguses());
}

Answer 1

使用SelectMany扁平化嵌套列表

asparaguses.AddRange(field.GetBeds().SelectMany(bed => bed.GetAsparaguses()));

Answer 2

尝试SelectMany以扁平化的集合集合:

 asparaguses.AddRange(field
    .GetBeds()
    .SelectMany(bed => bed.GetAsparaguses()));