C#Winform读取txt文件内容

1、读取数据类型

数据为一系列点坐标

2、打开文件

OpenFileDialog SelectTxtDialog = new OpenFileDialog();
if (SelectTxtDialog.ShowDialog(this) == DialogResult.OK)
{
     
    //保存路径
    filePath = Path.GetFullPath(SelectTxtDialog.FileName);
    Console.WriteLine(filePath);
    //读取数据
    Readdata();
}

3、读取数据

private void Readdata()
{
     
 //建立文件读取流对象
   StreamReader str = new StreamReader(filePath);
   //获取每行字符
   string line;
   while ((line = str.ReadLine()) != null)
   {
     
       //通过','将行分裂为字符串组
       string[] Q = line.Split(',');
       double x, y;
       x = Convert.ToDouble(Q[0]);
       y = Convert.ToDouble(Q[1]);
       PointF tmp_point = new PointF((float)(x), (float)(y));
       //存入点列
       PointList.Add(tmp_point);
   }
   str.Close();
}

4、输出查看