c# 将一种数组类型转成另一种数组类型

1. string[] strpcid = item.cid.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries); 
2. int[] intpcid = Array.ConvertAll<string, int>(strpcid, s => int.Parse(s));

1. var intarr = Enumerable.Range(0, 100); 
2. string[] str = intarr.Cast<string>().ToArray();