天天向上

加入參考加入Microsoft.VisualBasicprivate void button1_Click(object sender, EventArgs e)
{
     timer1.Interval = 100;
     timer1.Enabled = !timer1.Enabled;
}

參考資料: Form.AcceptButton 屬性 能做什麼?
想像一下如果使用者在 textBox 填好資料後，不用滑鼠，按 Enter 就能執行下一步的動作，是不是蠻方便的。
namespace AcceptBtnTest
{
     public partial class Form1 : Form
     {
         public Form1()
         {
             InitializeComponent();
             this.AcceptButton = button1;
         }

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Finder
{
     public class Finder
     {
         public static int Find<T>(T[] items, T item)
         {
             for (int i = 0; i < items.Length; i++)
             {
                 if(items[i].Equals(item))
                 {
                     return i;
                 }
             }
             return -1;
         }
     }
     class Program
     {
         static void Main(string[] args)
         {
             int pos = 0;
             int val = 5;
             int[] seqence = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
            
             pos = Finder.Find<int>(seqence, val) + 1;
             Console.WriteLine("The position of number "+ val.ToString() + " is " + pos.ToString());
             //======================================================================
             string s = "Peter";
             string[] str = new string[] { "Jane", "Peter", "Ryan" };
       
             pos = Finder.Find<string>(str, s);
             Console.WriteLine("The position of string " + s + " is " + pos.ToString());
             Console.ReadLine();
         }
     }
}

namespace WebCam
{
     public partial class Form1 : Form
     {
         private Capture _capture = null;    // 影像機
         private bool _captureInProgress;    // 是否擷取中

加入參考: C:\Emgu\emgucv-windows-universal-cuda 2.9.0.1922\bin\Emgu.CV.dllA wrapper for the OpenCV library (opencv_core, opencv_calib3d, opencv_contrib, opencv_features2d, opencv_highgui, opencv_imgproc, opencv_objdetect and opencv_video)接著仿照上步驟也加入Emgu.Util.dll加入以下三個namespaceusing Emgu.CV;
using Emgu.CV.CvEnum;
using Emgu.CV.Structure;

加入參考FoconSvr.exeusing FaconSvr;加入DataGridView1按下<加入>

 參考資料: Using GPU_FFT with data              Using GPU_FFT with data – part2
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <math.h>
#include <time.h>
#include "mailbox.h"
#include "gpu_fft.h"
int main()
{
   int ret, m, l, d, j, k, i, ii, iii, w, freq;
   m = mbox_open();
   l = 8;               //length
   d = GPU_FFT_FWD;     //direction
   j = 255;             //jobs
   k = 1;               //loops
   float data[j];
   for (i=0; i<j; i++)  //loop to make false data set
   {
      data[i] = i*.00001;
      //printf("data[%d] = %f\n", i, data[i]);
   }
   struct GPU_FFT *fft;
   gpu_fft_prepare(m, l, d, j, &fft);
   for(i=0; i<k; i++)
   {
      for(iii=0; iii<j; iii++)  //input buffer loop
      {
         struct GPU_FFT_COMPLEX *in = fft->in + j*fft->step;
/*setting all mem to 0 in order to have guard space between buffers*/
         for (ii=0; ii<j+1; ii++)
         {
             in[ii].re=in[ii].im=0;
         }
/*sending data set to input buffer, excluding first and last address so they are still zero*/
         freq = iii+1;
         in[freq].re = data[iii];
         in[j-1].re = 0;
         //printf("in[%d].re = %f\n", iii, in[iii].re);
      }
      gpu_fft_execute(fft);
/*assigning buffer address to pointer out*/
      struct GPU_FFT_COMPLEX *out = fft->out+iii*fft->step;
/*attempting to print values of output buffer, should be values created by gpu_fft_execute*/
      for(w=0; w<j; w++) //output print loop
      {
      printf("real out[%d].re = %f\n", w, out[w].re);
      }
   }
   gpu_fft_release(fft);
   printf("END END END END END END END END END END END END END END END END END END\n");
   return 0;
}

===============================================================================================================
計算程式執行時間
 
System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();//引用stopwatch物件

安裝ALSAsudo apt-get install libasound2-dev安裝好之後會看到/usr/include/alsa編譯指令sudo gcc -o record recordSound.cpp `pkg-config --libs alsa`