Stopwatch.ElapsedTicks プロパティとは? わかりやすく解説

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Stopwatch.ElapsedTicks プロパティ

メモ : このプロパティは、.NET Framework version 2.0新しく追加されたものです。

現在のインスタンス計測され経過時間合計取得します (タイマ刻み)。

名前空間: System.Diagnostics
アセンブリ: System (system.dll 内)
構文構文

解説解説
使用例使用例

Stopwatch クラス使用して文字列から整数解析するための 4 種類実装パフォーマンス計測する例を次に示します

Dim ticksThisTime As Long
 = 0
Dim inputNum As Integer
Dim timePerParse As Stopwatch

Select Case operation
   Case 0
      ' Parse a valid integer using
      ' a try-catch statement.
      ' Start a new stopwatch timer.
      timePerParse = Stopwatch.StartNew()
      
      Try
         inputNum = Int32.Parse("0")
      Catch e As FormatException
         inputNum = 0
      End Try
      
      ' Stop the timer, and save the
      ' elapsed ticks for the operation.
      timePerParse.Stop()
      ticksThisTime = timePerParse.ElapsedTicks
   Case 1
      ' Parse a valid integer using
      ' the TryParse statement.
      ' Start a new stopwatch timer.
      timePerParse = Stopwatch.StartNew()
      
      If Not Int32.TryParse("0",
 inputNum) Then
         inputNum = 0
      End If
      
      ' Stop the timer, and save the
      ' elapsed ticks for the operation.
      timePerParse.Stop()
      ticksThisTime = timePerParse.ElapsedTicks
   Case 2
      ' Parse an invalid value using
      ' a try-catch statement.
      ' Start a new stopwatch timer.
      timePerParse = Stopwatch.StartNew()
      
      Try
         inputNum = Int32.Parse("a")
      Catch e As FormatException
         inputNum = 0
      End Try
      
      ' Stop the timer, and save the
      ' elapsed ticks for the operation.
      timePerParse.Stop()
      ticksThisTime = timePerParse.ElapsedTicks
   Case 3
      ' Parse an invalid value using
      ' the TryParse statement.
      ' Start a new stopwatch timer.
      timePerParse = Stopwatch.StartNew()
      
      If Not Int32.TryParse("a",
 inputNum) Then
         inputNum = 0
      End If
      
      ' Stop the timer, and save the
      ' elapsed ticks for the operation.
      timePerParse.Stop()
      ticksThisTime = timePerParse.ElapsedTicks
   
   Case Else
End Select
long ticksThisTime = 0;
int inputNum;
Stopwatch timePerParse;

switch (operation)
{
    case 0:
        // Parse a valid integer using
        // a try-catch statement.

        // Start a new stopwatch timer.
        timePerParse = Stopwatch.StartNew();

        try 
        {
            inputNum = Int32.Parse("0");
        }
        catch (FormatException)
        {
            inputNum = 0;
        }

        // Stop the timer, and save the
        // elapsed ticks for the operation.

        timePerParse.Stop();
        ticksThisTime = timePerParse.ElapsedTicks;
        break;
    case 1:
        // Parse a valid integer using
        // the TryParse statement.

        // Start a new stopwatch timer.
        timePerParse = Stopwatch.StartNew();

        if (!Int32.TryParse("0", out inputNum))
        { 
            inputNum = 0;
        }

        // Stop the timer, and save the
        // elapsed ticks for the operation.
        timePerParse.Stop();
        ticksThisTime = timePerParse.ElapsedTicks;
        break;
    case 2:
        // Parse an invalid value using
        // a try-catch statement.

        // Start a new stopwatch timer.
        timePerParse = Stopwatch.StartNew();

        try 
        {
            inputNum = Int32.Parse("a");
        }
        catch (FormatException)
        {
            inputNum = 0;
        }

        // Stop the timer, and save the
        // elapsed ticks for the operation.
        timePerParse.Stop();
        ticksThisTime = timePerParse.ElapsedTicks;
        break;
    case 3:
        // Parse an invalid value using
        // the TryParse statement.

        // Start a new stopwatch timer.
        timePerParse = Stopwatch.StartNew();

        if (!Int32.TryParse("a", out inputNum))
        { 
            inputNum = 0;
        }

        // Stop the timer, and save the
        // elapsed ticks for the operation.
        timePerParse.Stop();
        ticksThisTime = timePerParse.ElapsedTicks;
        break;

    default:
        break;
}
Int64 ticksThisTime = 0;
int inputNum;
Stopwatch ^ timePerParse;
switch ( operation )
{
   case 0:
      
      // Parse a valid integer using
      // a try-catch statement.
      // Start a new stopwatch timer.
      timePerParse = Stopwatch::StartNew();
      try
      {
         inputNum = Int32::Parse( "0" );
      }
      catch ( FormatException^ ) 
      {
         inputNum = 0;
      }

      // Stop the timer, and save the
      // elapsed ticks for the operation.
      timePerParse->Stop();
      ticksThisTime = timePerParse->ElapsedTicks;
      break;

   case 1:
      
      // Parse a valid integer using
      // the TryParse statement.
      // Start a new stopwatch timer.
      timePerParse = Stopwatch::StartNew();
      if (  !Int32::TryParse( "0", inputNum ) )
      {
         inputNum = 0;
      }
      
      // Stop the timer, and save the
      // elapsed ticks for the operation.
      timePerParse->Stop();
      ticksThisTime = timePerParse->ElapsedTicks;
      break;

   case 2:
      
      // Parse an invalid value using
      // a try-catch statement.
      // Start a new stopwatch timer.
      timePerParse = Stopwatch::StartNew();
      try
      {
         inputNum = Int32::Parse( "a" );
      }
      catch ( FormatException^ ) 
      {
         inputNum = 0;
      }

      // Stop the timer, and save the
      // elapsed ticks for the operation.
      timePerParse->Stop();
      ticksThisTime = timePerParse->ElapsedTicks;
      break;

   case 3:
      
      // Parse an invalid value using
      // the TryParse statement.
      // Start a new stopwatch timer.
      timePerParse = Stopwatch::StartNew();
      if (  !Int32::TryParse( "a", inputNum ) )
      {
         inputNum = 0;
      }
      
      // Stop the timer, and save the
      // elapsed ticks for the operation.
      timePerParse->Stop();
      ticksThisTime = timePerParse->ElapsedTicks;
      break;

   default:
      break;
}
long ticksThisTime = 0;
int inputNum = 0;
Stopwatch timePerParse;

switch (operation) {
    case 0:
        // Parse a valid integer using
        // a try-catch statement.
        // Start a new stopwatch timer.
        timePerParse = Stopwatch.StartNew();

        try {
            inputNum = Int32.Parse("0");
        }
        catch (FormatException exp) {
            inputNum = 0;
        }
        // Stop the timer, and save the
        // elapsed ticks for the operation.
        timePerParse.Stop();
        ticksThisTime = timePerParse.get_ElapsedTicks();
        break;

    case 1:
        // Parse a valid integer using
        // the TryParse statement.
        // Start a new stopwatch timer.
        timePerParse = Stopwatch.StartNew();

        if (!(Int32.TryParse("0", inputNum))) {
            inputNum = 0;
        }
        // Stop the timer, and save the
        // elapsed ticks for the operation.
        timePerParse.Stop();
        ticksThisTime = timePerParse.get_ElapsedTicks();
        break;

    case 2:
        // Parse an invalid value using
        // a try-catch statement.
        // Start a new stopwatch timer.
        timePerParse = Stopwatch.StartNew();

        try {
            inputNum = Int32.Parse("a");
        }
        catch (FormatException exp) {
            inputNum = 0;
        }
        // Stop the timer, and save the
        // elapsed ticks for the operation.
        timePerParse.Stop();
        ticksThisTime = timePerParse.get_ElapsedTicks();
        break;

    case 3:
        // Parse an invalid value using
        // the TryParse statement.
        // Start a new stopwatch timer.
        timePerParse = Stopwatch.StartNew();

        if (!(Int32.TryParse("a", inputNum))) {
            inputNum = 0;
        }
        // Stop the timer, and save the
        // elapsed ticks for the operation.
        timePerParse.Stop();
        ticksThisTime = timePerParse.get_ElapsedTicks();
        break;

    default:
        break;
}
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