Populate a list with a specific range of numbers by using LINQ

问题

In order to populate a List<int> with a range of numbers from 1 to n I can use:

for (i=1; i<=n; i++)
{
   myList.Add(i);
}

Is there any way to achieve the same result by using LINQ inline expressions?

UPDATE

Assume I have a method getMonthName(i) that given the integer returns the name of the month. Can I populate the list directly with month names somehow by using Enumerable

回答1:

Enumerable.Range(1,12).Select(getMonthName);

回答2:

You want to use Enumerable.Range.

myList.AddRange(Enumerable.Range(1, n));

Or

myList = Enumerable.Range(1, n).ToList();

---

If you're asking this kind of question, you might want to look over the methods of System.Linq.Enumerable. That's where all this stuff is kept. Don't miss ToLookup, Concat (vs Union), and Repeat.

回答3:

For the month names you can use Select():

var months = Enumerable.Range(1,n).Select(getMonthName);

来源：https://stackoverflow.com/questions/9361598/populate-a-list-with-a-specific-range-of-numbers-by-using-linq