public static string GetColsName(DataGridView dataGridView1, string ColNums) { char [] separator = { ',' }; //string是以逗号分隔的 string[] AllNum = ColNums.Split(separator); //按照逗号分割 string AllNames = ""; foreach (string SingleNum in AllNum) { if (SingleNum != "") { if (MathV.IsStringInt(SingleNum)) { AllNames += dataGridView1.Columns[Convert.ToInt32(SingleNum) - 1].Name + ","; } } } if (AllNames != "") { AllNames = AllNames.Substring(0, AllNames.Length - 1); } return(AllNames); }