新人拼凑的码，求解为什么D\\点云数据.txt中没有写入数据！！

Question

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Kinect;
using System.IO;
using System.Windows.Forms;
namespace GetPointCloudFromKinectV2
{
class Program
{

    //************************ 初始化相关对象 *********************************
    public static KinectSensor sensor0 = null;

    static DepthFrameSource depthFrameSource0 = null;

    static DepthFrameReader depthFrameReader0 = null;

    static DepthFrame depthFrame = null;
    static ushort[] frameData_Shoot = new ushort[217088];

    static CoordinateMapper coordinateMapper0 = null;

    static int depthFrameWidth = 512;
    static int depthFrameHeight = 424;
    static CameraSpacePoint[] OriginalPointCloud0 = new CameraSpacePoint[depthFrameWidth * depthFrameHeight];
    static void Main(string[] args)
    {
        sensor0 = KinectSensor.GetDefault();
        sensor0.Open(); //打开传感器


        depthFrameSource0 = sensor0.DepthFrameSource;//初始化depthFrameSource0
        coordinateMapper0 = sensor0.CoordinateMapper;//初始化coordinateMapper0

        depthFrameReader0 = sensor0.DepthFrameSource.OpenReader();//打开深度数据流

        DepthFrame depthFrame = null;
        depthFrame = depthFrameReader0.AcquireLatestFrame();
        if (depthFrame != null)
        {
            depthFrame.CopyFrameDataToArray(frameData_Shoot);

            coordinateMapper0.MapDepthFrameToCameraSpace(frameData_Shoot, OriginalPointCloud0);



        }
    }

    /// 将摄像机坐标系下的点云写入到文件

    static void WritePointCloud(CameraSpacePoint[] cameraSpacePoints, string FilePath = "D\\点云数据.txt")
    {
        //确保路径存在
        //如果不存在，则创建文件夹
        if (!Directory.Exists(FilePath))
        {
            Directory.CreateDirectory(FilePath);
        }

        FilePath = Path.Combine(FilePath );

        try
        {
            float x, y, z;
            int frameWidth = depthFrameWidth;//深度帧的宽度
            int frameHeight = depthFrameHeight;//深度帧的高度
            for (int row = 0; row < frameHeight; row++)
            {
                for (int col = 0; col < frameWidth; col++)
                {
                    x = cameraSpacePoints[row * frameWidth + col].X;
                    y = cameraSpacePoints[row * frameWidth + col].Y;
                    z = cameraSpacePoints[row * frameWidth + col].Z;
                    string path="D\\点云数据.txt";//
                    StreamWriter sw = new StreamWriter(path, true);
                    sw.WriteLine("{0} {1} {2}", x, y, z);
                    sw.Close();
                }
            }    
        }
        catch (IOException ex)
        {
            System.Windows.Forms.MessageBox.Show("An IO exception has been thrown!\n{0}",
                ex.ToString());
            return;
        }
    }
}

}
新人拼凑的码，求解为什么D\点云数据.txt中没有写入数据！！

Answer 1

路径搞错了吧。。你少了冒号会在你exe所在目录写入文件，就是bin目录里面，而不是d盘根目录下

        string path = @"D:\点云数据.txt";//放外面来，不需要每次打开文件写入
       StreamWriter sw = new StreamWriter(path, true);
        for (int row = 0; row < frameHeight; row++)
        {
            for (int col = 0; col < frameWidth; col++)
            {
                x = cameraSpacePoints[row * frameWidth + col].X;
                y = cameraSpacePoints[row * frameWidth + col].Y;
                z = cameraSpacePoints[row * frameWidth + col].Z;
                sw.WriteLine("{0} {1} {2}", x, y, z);
            }
        }
        sw.Close();