[C#][群益 Api]計算 1 分 K 線與產生 KD 技術指標

股市的 K 線圖是所有技術指標計算的基礎，我在此篇教學文章的重點將會放在串接群益 Api 報價之後，取得某商品即時價格，然後計算 1 分 K 線，再產生技術指標。

技術指標有非常多種類，而我這次先以最常見的 KD 指標來做範例教學。

我在之前的文章已經有講解如何連線登入群益 Api 取得報價，可參考：
官方範例下載與安裝環境 #CH1
帳號登入、取得下單帳號教學 #CH2
取得商品報價、Tick、最佳 5 檔教學 #CH3

這裡我額外寫了一個範例，已經將連線 Api 與報價完成，接著就計算技術指標。
下圖紅框處是今天分享的重點。

此範例是由 Visual Studio 2022 開發的 Windows Form .Net Core 6 專案。
文章會講解重點程式碼，若需要完整範例程式碼，可至文末下載 (需付費)。

Contents [hide]

1 搜集報價資料
- 1.1 建立價格列表
2 計算 1 分 K 線
3 計算 KD 指標
- 3.1 範例下載
- 3.2 實際網頁專案開發範例

搜集報價資料

當訂閱報價之後，群益會透過事件方法返回報價資料，我註冊的事件名稱是 OnNotifyQuoteLONG 事件方法是 m_SKQuoteLib_OnNotifyQuoteLONG

// 註冊國內報價回傳事件
m_SKQuoteLib.OnNotifyQuoteLONG += new _ISKQuoteLibEvents_OnNotifyQuoteLONGEventHandler(m_SKQuoteLib_OnNotifyQuoteLONG);

1 2	// 註冊國內報價回傳事件 m_SKQuoteLib.OnNotifyQuoteLONG += new _ISKQuoteLibEvents_OnNotifyQuoteLONGEventHandler(m_SKQuoteLib_OnNotifyQuoteLONG);

以下是 m_SKQuoteLib_OnNotifyQuoteLONG 接收報價的語法：

/// <summary>
/// 國內報價回應事件
/// </summary>
/// <param name="sMarketNo"></param>
/// <param name="nStockIdx"></param>
void m_SKQuoteLib_OnNotifyQuoteLONG(short sMarketNo, int nStockIdx)
{
	// 報價資訊物件
	SKSTOCKLONG pSKStockLONG = new SKSTOCKLONG();

	// 取得最新報價寫入報價資訊物件
	m_SKQuoteLib.SKQuoteLib_GetStockByIndexLONG(sMarketNo, nStockIdx, ref pSKStockLONG);

	// 將報價資訊物件輸出在 DataGridView
	onUpdateQuote(pSKStockLONG);
}

/// <summary>
/// 更新最新報價
/// </summary>
private void onUpdateQuote(SKSTOCKLONG pSKStockLONG)
{
	if (dtQuote == null)
	{
		// 報價物件寫入 Datatable
		dtQuote = new DataTable();
		dtQuote.Columns.Add("QuoteName");
		dtQuote.Columns.Add("QuoteValue");
		DataRow drNew = dtQuote.NewRow();
		drNew["QuoteName"] = "代碼";
		drNew["QuoteValue"] = pSKStockLONG.bstrStockNo;
		dtQuote.Rows.Add(drNew);

		drNew = dtQuote.NewRow();
		drNew["QuoteName"] = "名稱";
		drNew["QuoteValue"] = pSKStockLONG.bstrStockName;
		dtQuote.Rows.Add(drNew);

		drNew = dtQuote.NewRow();
		drNew["QuoteName"] = "開盤價";
		drNew["QuoteValue"] = pSKStockLONG.nOpen / (Math.Pow(10, pSKStockLONG.sDecimal));
		dtQuote.Rows.Add(drNew);

		drNew = dtQuote.NewRow();
		drNew["QuoteName"] = "最高價";
		drNew["QuoteValue"] = pSKStockLONG.nHigh / (Math.Pow(10, pSKStockLONG.sDecimal));
		dtQuote.Rows.Add(drNew);

		drNew = dtQuote.NewRow();
		drNew["QuoteName"] = "最低價";
		drNew["QuoteValue"] = pSKStockLONG.nLow / (Math.Pow(10, pSKStockLONG.sDecimal));
		dtQuote.Rows.Add(drNew);

		drNew = dtQuote.NewRow();
		drNew["QuoteName"] = "成交價";
		drNew["QuoteValue"] = pSKStockLONG.nClose / (Math.Pow(10, pSKStockLONG.sDecimal));
		dtQuote.Rows.Add(drNew);

		drNew = dtQuote.NewRow();
		drNew["QuoteName"] = "單量";
		drNew["QuoteValue"] = pSKStockLONG.nTickQty;
		dtQuote.Rows.Add(drNew);

		drNew = dtQuote.NewRow();
		drNew["QuoteName"] = "昨收價";
		drNew["QuoteValue"] = pSKStockLONG.nRef / (Math.Pow(10, pSKStockLONG.sDecimal));
		dtQuote.Rows.Add(drNew);

		drNew = dtQuote.NewRow();
		drNew["QuoteName"] = "買價";
		drNew["QuoteValue"] = (pSKStockLONG.nBid / (Math.Pow(10, pSKStockLONG.sDecimal))).ToString();
		dtQuote.Rows.Add(drNew);

		drNew = dtQuote.NewRow();
		drNew["QuoteName"] = "買量";
		drNew["QuoteValue"] = pSKStockLONG.nBc;
		dtQuote.Rows.Add(drNew);

		drNew = dtQuote.NewRow();
		drNew["QuoteName"] = "賣價";
		drNew["QuoteValue"] = (pSKStockLONG.nAsk / (Math.Pow(10, pSKStockLONG.sDecimal))).ToString();
		dtQuote.Rows.Add(drNew);

		drNew = dtQuote.NewRow();
		drNew["QuoteName"] = "賣量";
		drNew["QuoteValue"] = pSKStockLONG.nAc;
		dtQuote.Rows.Add(drNew);

		drNew = dtQuote.NewRow();
		drNew["QuoteName"] = "總量";
		drNew["QuoteValue"] = pSKStockLONG.nTQty;
		dtQuote.Rows.Add(drNew);

		drNew = dtQuote.NewRow();
		drNew["QuoteName"] = "時間";
		drNew["QuoteValue"] = DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss");
		dtQuote.Rows.Add(drNew);

		//輸出 GridView
		gvQuote.DataSource = dtQuote;
		gvQuote.Refresh();
	}
	else
	{
		// 報價物件更新 Datatable
		DataRow dr = dtQuote.Select("QuoteName='開盤價'")[0];
		dr["QuoteValue"] = pSKStockLONG.nOpen / (Math.Pow(10, pSKStockLONG.sDecimal));

		dr = dtQuote.Select("QuoteName='最高價'")[0];
		dr["QuoteValue"] = pSKStockLONG.nHigh / (Math.Pow(10, pSKStockLONG.sDecimal));

		dr = dtQuote.Select("QuoteName='最低價'")[0];
		dr["QuoteValue"] = pSKStockLONG.nLow / (Math.Pow(10, pSKStockLONG.sDecimal));

		dr = dtQuote.Select("QuoteName='成交價'")[0];
		dr["QuoteValue"] = pSKStockLONG.nClose / (Math.Pow(10, pSKStockLONG.sDecimal));

		dr = dtQuote.Select("QuoteName='單量'")[0];
		dr["QuoteValue"] = pSKStockLONG.nTickQty;

		dr = dtQuote.Select("QuoteName='昨收價'")[0];
		dr["QuoteValue"] = pSKStockLONG.nRef / (Math.Pow(10, pSKStockLONG.sDecimal));

		dr = dtQuote.Select("QuoteName='買價'")[0];
		dr["QuoteValue"] = (pSKStockLONG.nBid / (Math.Pow(10, pSKStockLONG.sDecimal))).ToString();

		dr = dtQuote.Select("QuoteName='買量'")[0];
		dr["QuoteValue"] = pSKStockLONG.nBc;

		dr = dtQuote.Select("QuoteName='賣價'")[0];
		dr["QuoteValue"] = (pSKStockLONG.nAsk / (Math.Pow(10, pSKStockLONG.sDecimal))).ToString();

		dr = dtQuote.Select("QuoteName='賣量'")[0];
		dr["QuoteValue"] = pSKStockLONG.nAc;

		dr = dtQuote.Select("QuoteName='總量'")[0];
		dr["QuoteValue"] = pSKStockLONG.nTQty;

		dr = dtQuote.Select("QuoteName='時間'")[0];
		dr["QuoteValue"] = DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss");
	}
}

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/// <summary>

/// 國內報價回應事件

/// </summary>

/// <param name="sMarketNo"></param>

/// <param name="nStockIdx"></param>

void m_SKQuoteLib_OnNotifyQuoteLONG(short sMarketNo, int nStockIdx)

{

// 報價資訊物件

SKSTOCKLONG pSKStockLONG = new SKSTOCKLONG();

// 取得最新報價寫入報價資訊物件

m_SKQuoteLib.SKQuoteLib_GetStockByIndexLONG(sMarketNo, nStockIdx, ref pSKStockLONG);

// 將報價資訊物件輸出在 DataGridView

onUpdateQuote(pSKStockLONG);

}

/// <summary>

/// 更新最新報價

/// </summary>

private void onUpdateQuote(SKSTOCKLONG pSKStockLONG)

{

if (dtQuote == null)

{

// 報價物件寫入 Datatable

dtQuote = new DataTable();

dtQuote.Columns.Add("QuoteName");

dtQuote.Columns.Add("QuoteValue");

DataRow drNew = dtQuote.NewRow();

drNew["QuoteName"] = "代碼";

drNew["QuoteValue"] = pSKStockLONG.bstrStockNo;

dtQuote.Rows.Add(drNew);

drNew = dtQuote.NewRow();

drNew["QuoteName"] = "名稱";

drNew["QuoteValue"] = pSKStockLONG.bstrStockName;

dtQuote.Rows.Add(drNew);

drNew = dtQuote.NewRow();

drNew["QuoteName"] = "開盤價";

drNew["QuoteValue"] = pSKStockLONG.nOpen / (Math.Pow(10, pSKStockLONG.sDecimal));

dtQuote.Rows.Add(drNew);

drNew = dtQuote.NewRow();

drNew["QuoteName"] = "最高價";

drNew["QuoteValue"] = pSKStockLONG.nHigh / (Math.Pow(10, pSKStockLONG.sDecimal));

dtQuote.Rows.Add(drNew);

drNew = dtQuote.NewRow();

drNew["QuoteName"] = "最低價";

drNew["QuoteValue"] = pSKStockLONG.nLow / (Math.Pow(10, pSKStockLONG.sDecimal));

dtQuote.Rows.Add(drNew);

drNew = dtQuote.NewRow();

drNew["QuoteName"] = "成交價";

drNew["QuoteValue"] = pSKStockLONG.nClose / (Math.Pow(10, pSKStockLONG.sDecimal));

dtQuote.Rows.Add(drNew);

drNew = dtQuote.NewRow();

drNew["QuoteName"] = "單量";

drNew["QuoteValue"] = pSKStockLONG.nTickQty;

dtQuote.Rows.Add(drNew);

drNew = dtQuote.NewRow();

drNew["QuoteName"] = "昨收價";

drNew["QuoteValue"] = pSKStockLONG.nRef / (Math.Pow(10, pSKStockLONG.sDecimal));

dtQuote.Rows.Add(drNew);

drNew = dtQuote.NewRow();

drNew["QuoteName"] = "買價";

drNew["QuoteValue"] = (pSKStockLONG.nBid / (Math.Pow(10, pSKStockLONG.sDecimal))).ToString();

dtQuote.Rows.Add(drNew);

drNew = dtQuote.NewRow();

drNew["QuoteName"] = "買量";

drNew["QuoteValue"] = pSKStockLONG.nBc;

dtQuote.Rows.Add(drNew);

drNew = dtQuote.NewRow();

drNew["QuoteName"] = "賣價";

drNew["QuoteValue"] = (pSKStockLONG.nAsk / (Math.Pow(10, pSKStockLONG.sDecimal))).ToString();

dtQuote.Rows.Add(drNew);

drNew = dtQuote.NewRow();

drNew["QuoteName"] = "賣量";

drNew["QuoteValue"] = pSKStockLONG.nAc;

dtQuote.Rows.Add(drNew);

drNew = dtQuote.NewRow();

drNew["QuoteName"] = "總量";

drNew["QuoteValue"] = pSKStockLONG.nTQty;

dtQuote.Rows.Add(drNew);

drNew = dtQuote.NewRow();

drNew["QuoteName"] = "時間";

drNew["QuoteValue"] = DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss");

dtQuote.Rows.Add(drNew);

//輸出 GridView

gvQuote.DataSource = dtQuote;

gvQuote.Refresh();

}

else

{

// 報價物件更新 Datatable

DataRow dr = dtQuote.Select("QuoteName='開盤價'")[0];

dr["QuoteValue"] = pSKStockLONG.nOpen / (Math.Pow(10, pSKStockLONG.sDecimal));

dr = dtQuote.Select("QuoteName='最高價'")[0];

dr["QuoteValue"] = pSKStockLONG.nHigh / (Math.Pow(10, pSKStockLONG.sDecimal));

dr = dtQuote.Select("QuoteName='最低價'")[0];

dr["QuoteValue"] = pSKStockLONG.nLow / (Math.Pow(10, pSKStockLONG.sDecimal));

dr = dtQuote.Select("QuoteName='成交價'")[0];

dr["QuoteValue"] = pSKStockLONG.nClose / (Math.Pow(10, pSKStockLONG.sDecimal));

dr = dtQuote.Select("QuoteName='單量'")[0];

dr["QuoteValue"] = pSKStockLONG.nTickQty;

dr = dtQuote.Select("QuoteName='昨收價'")[0];

dr["QuoteValue"] = pSKStockLONG.nRef / (Math.Pow(10, pSKStockLONG.sDecimal));

dr = dtQuote.Select("QuoteName='買價'")[0];

dr["QuoteValue"] = (pSKStockLONG.nBid / (Math.Pow(10, pSKStockLONG.sDecimal))).ToString();

dr = dtQuote.Select("QuoteName='買量'")[0];

dr["QuoteValue"] = pSKStockLONG.nBc;

dr = dtQuote.Select("QuoteName='賣價'")[0];

dr["QuoteValue"] = (pSKStockLONG.nAsk / (Math.Pow(10, pSKStockLONG.sDecimal))).ToString();

dr = dtQuote.Select("QuoteName='賣量'")[0];

dr["QuoteValue"] = pSKStockLONG.nAc;

dr = dtQuote.Select("QuoteName='總量'")[0];

dr["QuoteValue"] = pSKStockLONG.nTQty;

dr = dtQuote.Select("QuoteName='時間'")[0];

dr["QuoteValue"] = DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss");

}

這裡只是將報價呈現在畫面上而已。

建立價格列表

首先先建立價格物件 ClosePriceModel

public class ClosePriceModel
{
	public DateTime Datetime { get; set; }
	public double Price { get; set; }
	public int Qty { get; set; }
}

public class ClosePriceModel

{

public DateTime Datetime { get; set; }

public double Price { get; set; }

public int Qty { get; set; }

}

然後在 Form1.cs 建立價格物件列表

List<ClosePriceModel> listPriceCollect = new List<ClosePriceModel>(); //搜集收盤價

1	List<ClosePriceModel> listPriceCollect = new List<ClosePriceModel>(); //搜集收盤價

在 onUpdateQuote 方法最後面加上這段：

// 搜集報價
listPriceCollect.Add(new ClosePriceModel
{
	Datetime = DateTime.Now,
	Price = pSKStockLONG.nClose / (Math.Pow(10, pSKStockLONG.sDecimal)),
	Qty = pSKStockLONG.nTickQty
});

// 搜集報價

listPriceCollect.Add(new ClosePriceModel

{

Datetime = DateTime.Now,

Price = pSKStockLONG.nClose / (Math.Pow(10, pSKStockLONG.sDecimal)),

Qty = pSKStockLONG.nTickQty

});

將即時的價格搜集起來。

計算 1 分 K 線

我們先建立一個 K 線物件：

public class KlineModel
{
	public int idx { get; set; }
	public DateTime KlineTime { get; set; }
	public double Open { get; set; }
	public double High { get; set; }
	public double Low { get; set; }
	public double Close { get; set; }
	public int Qty { get; set; }
	public double? Kd_K { get; set; }
	public double? Kd_D { get; set; }
}

public class KlineModel

{

public int idx { get; set; }

public DateTime KlineTime { get; set; }

public double Open { get; set; }

public double High { get; set; }

public double Low { get; set; }

public double Close { get; set; }

public int Qty { get; set; }

public double? Kd_K { get; set; }

public double? Kd_D { get; set; }

}

然後在 Form1.cs 新增 K 線物件列表：

List<KlineModel> listKline = new List<KlineModel>(); //搜集k線

1	List<KlineModel> listKline = new List<KlineModel>(); //搜集k線

宣告一個 timer 設定 1 秒觸發一次，然後判斷秒數等於 0 秒時，計算 K 線。

/// <summary>
/// 定時 1 秒事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void timer1_Tick(object sender, EventArgs e)
{
	if (DateTime.Now.ToString("ss") == "00")
	{
		// 計算上一分鐘K線
		DateTime lastMinute = DateTime.Now.AddMinutes(-1);

		List<ClosePriceModel> items = listPriceCollect.Where(m => m.Datetime >= lastMinute).ToList();
		if (items.Count() > 0)
		{
			// 搜集k線
			listKline.Add(new KlineModel()
			{
				idx = listKline.Count,
				KlineTime = lastMinute,
				Open = items.First().Price,
				High = items.Max(m => m.Price),
				Low = items.Min(m => m.Price),
				Close = items.Last().Price,
				Qty = items.Sum(m => m.Qty)
			});

			// 輸出至 DataGridView
			gvKline.DataSource = listKline.ToList();
		}
	}
}

/// <summary>

/// 定時 1 秒事件

/// </summary>

/// <param name="sender"></param>

/// <param name="e"></param>

private void timer1_Tick(object sender, EventArgs e)

{

if (DateTime.Now.ToString("ss") == "00")

{

// 計算上一分鐘K線

DateTime lastMinute = DateTime.Now.AddMinutes(-1);

List<ClosePriceModel> items = listPriceCollect.Where(m => m.Datetime >= lastMinute).ToList();

if (items.Count() > 0)

{

// 搜集k線

listKline.Add(new KlineModel()

{

idx = listKline.Count,

KlineTime = lastMinute,

Open = items.First().Price,

High = items.Max(m => m.Price),

Low = items.Min(m => m.Price),

Close = items.Last().Price,

Qty = items.Sum(m => m.Qty)

});

// 輸出至 DataGridView

gvKline.DataSource = listKline.ToList();

}

執行過後，每隔 1 分鐘就會顯示一筆資料。

計算 KD 指標

我們在建立 K 線物件時，已經預留了 KD 指標欄位：

而計算 KD 指標只要將 listKline 這個列表帶入公式就可以算出來了。
這裡我提供兩個計算 K 值和 D 值的公式：

/// <summary>
/// 計算 KD 的 K 值
/// </summary>
/// <param name="ary"></param>
/// <param name="rownum"></param>
/// <returns></returns>
private void CalcKD_K(List<KlineModel> listKline, int days)
{
	if (listKline.Count < days)
	{
		return;
	}

	/*
	 *  第n天收盤價-最近n天內最低價
		RSV ＝────────────────×100
		最近n天內最高價-最近n天內最低價
		計算出RSV之後，再來計算K值與D值。
		當日K值(%K)= 2/3 前一日 K值 + 1/3 RSV
	 */

	for (int i = 0; i < listKline.Count; i++)
	{
		if ((i + 1) - days < 0)
		{
			continue;
		}
		double val = 0;
		double beforeK = 0;

		// 取得前一天K值
		if (listKline[i - 1].Kd_K == null)
		{
			beforeK = 50;
		}
		else
		{
			beforeK = Convert.ToDouble(listKline[i - 1].Kd_K);
		}

		// 取當天收盤價
		double nowClose = listKline[i].Close;

		//取最近n天內最低價
		double minPrice = listKline.Where(w => w.idx > i - days && w.idx <= i).Min(s => s.Low);
		if (minPrice == 0)
		{
			continue;
		}

		//取最近n天內最高價
		double maxPrice = listKline.Where(w => w.idx > i - days && w.idx <= i).Max(s => s.High);

		double RSV = ((nowClose - minPrice) / (maxPrice - minPrice) * 100);

		if (double.IsNaN(RSV) == false)
		{
			val = ((beforeK * 2 / 3) + (RSV / 3));
			val = Math.Round(val, 2);
		}
		else
		{
			val = beforeK;
		}
		if (val > 0)
		{
			listKline[i].Kd_K = val;
		}
	}
}

/// <summary>
/// 計算 KD 的 D 值
/// </summary>
private void CalcKD_D(List<KlineModel> listKline, int days)
{
	if (listKline.Count < days)
	{
		return;
	}

	/*
		當日D值(%D)= 2/3 前一日 D值＋ 1/3 當日K值
	 */

	double val = 0;
	double beforeD = 0;
	for (int i = 0; i < listKline.Count; i++)
	{
		if (i + 1 < days)
		{
			continue;
		}
		// 取得前一天D值
		if (listKline[i - 1].Kd_D == null)
		{
			beforeD = 50;
		}
		else
		{
			beforeD = (double)listKline[i - 1].Kd_D;
		}

		// 取當日K值
		if (listKline[i].Kd_K == null)
		{
			continue;
		}
		double K9 = (double)listKline[i].Kd_K;

		val = (beforeD * 2 / 3) + (K9 / 3);
		if (val > 0)
		{
			val = Math.Round(val, 2);
			listKline[i].Kd_D = val;
		}
	}

}

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/// <summary>

/// 計算 KD 的 K 值

/// </summary>

/// <param name="ary"></param>

/// <param name="rownum"></param>

/// <returns></returns>

private void CalcKD_K(List<KlineModel> listKline, int days)

{

if (listKline.Count < days)

{

return;

}

* 第n天收盤價-最近n天內最低價

RSV ＝────────────────×100

最近n天內最高價-最近n天內最低價

計算出RSV之後，再來計算K值與D值。

當日K值(%K)= 2/3 前一日 K值 + 1/3 RSV

for (int i = 0; i < listKline.Count; i++)

{

if ((i + 1) - days < 0)

{

continue;

}

double val = 0;

double beforeK = 0;

// 取得前一天K值

if (listKline[i - 1].Kd_K == null)

{

beforeK = 50;

}

else

{

beforeK = Convert.ToDouble(listKline[i - 1].Kd_K);

}

// 取當天收盤價

double nowClose = listKline[i].Close;

//取最近n天內最低價

double minPrice = listKline.Where(w => w.idx > i - days && w.idx <= i).Min(s => s.Low);

if (minPrice == 0)

{

continue;

}

//取最近n天內最高價

double maxPrice = listKline.Where(w => w.idx > i - days && w.idx <= i).Max(s => s.High);

double RSV = ((nowClose - minPrice) / (maxPrice - minPrice) * 100);

if (double.IsNaN(RSV) == false)

{

val = ((beforeK * 2 / 3) + (RSV / 3));

val = Math.Round(val, 2);

}

else

{

val = beforeK;

}

if (val > 0)

{

listKline[i].Kd_K = val;

}

/// <summary>

/// 計算 KD 的 D 值

/// </summary>

private void CalcKD_D(List<KlineModel> listKline, int days)

{

if (listKline.Count < days)

{

return;

}

當日D值(%D)= 2/3 前一日 D值＋ 1/3 當日K值

double val = 0;

double beforeD = 0;

for (int i = 0; i < listKline.Count; i++)

{

if (i + 1 < days)

{

continue;

}

// 取得前一天D值

if (listKline[i - 1].Kd_D == null)

{

beforeD = 50;

}

else

{

beforeD = (double)listKline[i - 1].Kd_D;

}

// 取當日K值

if (listKline[i].Kd_K == null)

{

continue;

}

double K9 = (double)listKline[i].Kd_K;

val = (beforeD * 2 / 3) + (K9 / 3);

if (val > 0)

{

val = Math.Round(val, 2);

listKline[i].Kd_D = val;

}

使用方法就是呼叫並帶入參數就可以了：

CalcKD_K(listKline, Convert.ToInt32(txtKdParam.Text));
CalcKD_D(listKline, Convert.ToInt32(txtKdParam.Text));
gvKlineKD.DataSource = listKline.ToList();

CalcKD_K(listKline, Convert.ToInt32(txtKdParam.Text));

CalcKD_D(listKline, Convert.ToInt32(txtKdParam.Text));

gvKlineKD.DataSource = listKline.ToList();

完成之後，執行程式，經過幾分鐘計算 K 線就可以顯示以下的結果。

範例下載

連結 GitHub 下載範例

實際網頁專案開發範例

此連結是我實際應用在網頁上呈現的範例: Winvest 雲投資

搜集報價資料

建立價格列表

計算 1 分 K 線

計算 KD 指標

範例下載

實際網頁專案開發範例

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