轉貼文章：http://tfeng.org/?p=1215 逐風者
這是 .net framework 2.0 新增的類別，可以讓你知道您得程式耗費多少時間，有助於優化自己得程式!
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26 | VB.net Code:
Dim sw As New System.Diagnostics.Stopwatch()
Dim num As Long = 0
sw.Reset()
sw = Stopwatch.StartNew()
'要測速的程式碼放這裡sw.Stop()
Dim ms As Long = sw.ElapsedMilliseconds
Debug.Print("花費 {0} 毫秒", ms)
Dim el As TimeSpan = sw.Elapsed
Debug.Print("花費 {0} ", el)
範例:(檢查do......loop花的時間)
Dim sw As New System.Diagnostics.Stopwatch()
Dim num As Long = 0
sw.Reset()
sw = Stopwatch.StartNew()
Do unitle x>100
x += 1
loop
sw.Stop()
Dim ms As Long = sw.ElapsedMilliseconds
Debug.Print("花費 {0} 毫秒", ms)
Dim el As TimeSpan = sw.Elapsed
Debug.Print("花費 {0} ", el) |
C# Code:
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12 | using System.Diagnostics;
//-------------------------------------------
Stopwatch sw = new Stopwatch();
long num = 0;
sw.Reset();
sw = Stopwatch.StartNew();
//要測速的程式放這裡
sw.Stop();
TimeSpan el = sw.Elapsed;
Console.WriteLine("花費 {0} ", el);
long ms = sw.ElapsedMilliseconds;
Console.WriteLine("花費 {0} 毫秒", ms); |
補充說明: 不一定每次測到的時間都相同喔!
建議值: 超過100毫秒就有點太慢囉…. (電腦爛會Lag更長)
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