Stopwatch.StartNew 메서드

정의

네임스페이스:
System.Diagnostics
어셈블리:
System.dll, System.Runtime.Extensions.dll
어셈블리:
netstandard.dll, System.Runtime.dll
어셈블리:
System.Runtime.Extensions.dll
어셈블리:
System.dll
어셈블리:
netstandard.dll
Source:
Stopwatch.cs
Source:
Stopwatch.cs
Source:
Stopwatch.cs
Source:
Stopwatch.cs
Source:
Stopwatch.cs

새 Stopwatch 인스턴스를 초기화하고, 경과된 시간 속성을 0으로 설정하고, 경과된 시간 측정을 시작합니다.

public:
 static System::Diagnostics::Stopwatch ^ StartNew();
public static System.Diagnostics.Stopwatch StartNew();
static member StartNew : unit -> System.Diagnostics.Stopwatch
Public Shared Function StartNew () As Stopwatch

반품

Stopwatch

이제 막 경과된 시간을 측정하기 시작한 A Stopwatch 입니다.

예제

다음 예제에서는 클래스를 Stopwatch 사용하여 문자열에서 정수 구문 분석하기 위한 네 가지 구현의 성능을 측정합니다. 이 코드 예제는 클래스에 제공된 더 큰 예제의 Stopwatch 일부입니다.

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;
}

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

설명

이 메서드는 생성자를 호출한 Stopwatch 다음 새 인스턴스를 호출 Start 하는 것과 같습니다.

적용 대상

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