Laola/WpfTest1/Toolkits/CSVWriter.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace WpfTest1.Toolkits
{
    public class CSVWriter
    {
        public static void generateWaveToCSV(List<double> leftRed, List<double> leftInfrared, List<double> rightRed, List<double> rightInfrared, SQLite.Patient pa, SQLite.Record re)
        {
            FileStream fs = new FileStream(Constants.exportWavePath + "\\" + re.recordTime.ToString("yyyyMMddHHmmss") + "_" + pa.p_name +  ".csv", FileMode.Create);
            StreamWriter sw = new StreamWriter(fs);
            //开始写入
            sw.Write("leftRed,leftInfrared,rightRed,rightInfrared\n");

            int counter = new int[] { leftRed.Count, rightRed.Count, leftInfrared.Count, rightInfrared.Count }.Max();
            for(int i = 0; i < counter; ++i)
            {
                string[] thisLine = new string[] { "","","",""};
                if((re.hand == "b" || re.hand=="l"))
                {
                    if(i < leftRed.Count)
                    {
                        thisLine[0] = leftRed[i].ToString();
                    }
                    if(i < leftInfrared.Count)
                    {
                        thisLine[1] = leftInfrared[i].ToString();
                    }
                }
                if ((re.hand == "b" || re.hand == "r" ))
                {
                    if (i < rightRed.Count)
                    {
                        thisLine[2] = rightRed[i].ToString();
                    }
                    if (i < rightInfrared.Count)
                    {
                        thisLine[3] = rightInfrared[i].ToString();
                    }
                }
                sw.Write(thisLine[0]+","+ thisLine[1] + "," + thisLine[2] + "," + thisLine[3] + "\n");
            }
            //清空缓冲区
            sw.Flush();
            //关闭流
            sw.Close();
            fs.Close();
        }
    }
}