原始数组

string[] Robin = new string[]
                {
                    "1-2,3,6",
                    "4-6,7",
                    "9-1"
                };

转换后数组

string[] Robin1 = new string[]
                {
                    "1-2",
                    "1-3",
                    "1-6",
                    "4-6",
                    "4-7",
                    "9-1"
                };

就是写一个方法,将第一个数组Robin的每一项按'-'分割 , 组成新的数组 ... 谢谢 ...

string[] Convert(string[] items)
        {
            List<string> ls = new List<string>();
            foreach (string item in items)
            {
                string[] arr = item.Split('-');
                foreach (string s in arr[1].Split(','))
                    ls.Add(item[0] + "-" + s);
            }
            string[] result = new string[ls.Count];
            for (int i = 0; i < ls.Count; i++)
                result[i] = ls[i];
            return result;
        }

string[] Robin = new string[] { "1-2,3,6", "4-6,7", "9-1" };
List<string> list = new List<string>();
for (int i = 0; i < Robin.Length; i++)
{
    string[] arrStr = Regex.Split(Robin[i], ",");
    list.Add(arrStr[0]);
    if (arrStr.Length > 1)
    {
        string str = Regex.Split(arrStr[0], "-")[0];
        for (int j = 1; j < arrStr.Length; j++)
        {
            list.Add(str + "-" + arrStr[j]);
        }
    }
}
string[] Robin1 = list.ToArray();