C# List泛型轉換，int,string 轉字符，轉數組

List轉字符串

List<string> List = new List<string>();
string strArray = string.Join(",", List);

字符串轉List

string str = "2,4,4,4";
List<string> List=new List<string> (str.Split(','))

字符數組轉Int數組

string str = "2,4,4,4";
int[] list = Array.ConvertAll<string, int>(str.Split(','), s => int.Parse(s));

List<string>字符串轉Int數組

List<string> List = new List<string>();
string strArray = string.Join(",", List);
int[] list = Array.ConvertAll<string, int>(strArray.Split(','), s => int.Parse(s));