读文件

string FileName;//文件名
using (StreamReader sr = new StreamReader(FileName))
            {
                String line;
                string[] split = new string[300];
                string header;
                int j = 0;
                int section = 0;
                while ((line = sr.ReadLine()) != null)
                {
                    if (line.Length > 0)//本行不为空
                    {
                        header = line.Substring(0, 1);
                        if (header != "!" && header != "#")//开头不是! 或者 #
                        {
                            split = line.Split();
                            section = 0;
                            freq[j] = Convert.ToSingle(split[section]) / dlg.factor;//频率
                            section = MoveNext(split, section);
                            mag1[j] = Convert.ToSingle(split[section]);//幅度S11
                            section = MoveNext(split, section);
                            phase1[j] = Convert.ToSingle(split[section]);//相位S11
                            section = MoveNext(split, section);
                            mag2[j] = Convert.ToSingle(split[section]) - mem_mag[j];//幅度S21 - memory
                            section = MoveNext(split, section);
                            phase2[j] = Convert.ToSingle(split[section]);//相位S21

                            section = MoveNext(split, section);
                            mag3[j] = Convert.ToSingle(split[section]);//幅度S12
                            section = MoveNext(split, section);
                            phase3[j] = Convert.ToSingle(split[section]);//相位S12
                            section = MoveNext(split, section);
                            mag4[j] = Convert.ToSingle(split[section]);//幅度S22
                            section = MoveNext(split, section);
                            phase4[j] = Convert.ToSingle(split[section]);//相位S22
                            
                            j++;
                        }//开头不是! 或者 #
                    }//本行不为空
                }//end while
            }//end of using