LINQ代替foreach和list.addrange

Question

有人知道以下代码的LINQ代码是什么吗？

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

Answer 1

使用SelectMany展平嵌套列表

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

Answer 2

尝试SelectMany以拼合集合的集合 ：

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