知识大全 .Net 3.5环境下常用数组性能测试

Posted 2022-07-14 环境

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　　这件事情似乎很无聊但是没人做我来做下苦力吧

　　以下是一些简单的测试单位以ms计算注意里面用到循环的数量有些事 W 有些是 W

　　这些记录可以作为编程过程中的一些参考

　　测试平台

　　奔腾 G 双核CPU G内存 vs 调试环境测试

　　一 ArrayList ( W W)Stopwatch timer = new Stopwatch(); timer Start(); System Collections ArrayList al = new System Collections ArrayList(); for (int i = ; i < ; i++)al Add(i); timer Stop(); Console Write(timer ElapsedMilliseconds ToString() + \\t ); Stopwatch timer = new Stopwatch(); timer Start(); for (int i = ; i < ; i++)al Contains(i); timer Stop(); Console WriteLine(timer ElapsedMilliseconds ToString());

　　二 Hashtable ( W W)Stopwatch timer = new Stopwatch(); timer Start(); System Collections Hashtable ht = new System Collections Hashtable(); for (int i = ; i < ; i++)ht Add(i i); timer Stop(); Console Write(timer ElapsedMilliseconds ToString() + \\t ); Stopwatch timer = new Stopwatch(); timer Start(); for (int i = ; i < ; i++)ht ContainsKey(i); timer Stop(); Console WriteLine(timer ElapsedMilliseconds ToString()); 把timer 提高到万(Hashtable ( W W))

　　三 HashSet ( W W)Stopwatch timer = new Stopwatch(); timer Start(); System Collections Generic HashSet ht = new System Collections Generic HashSet (); for (int i = ; i < ; i++)ht Add(i); timer Stop(); Console Write(timer ElapsedMilliseconds ToString() + \\t ); Stopwatch timer = new Stopwatch(); timer Start(); for (int i = ; i < ; i++)ht Contains(i); timer Stop(); Console WriteLine(timer ElapsedMilliseconds ToString());

　　四 List ( W W)Stopwatch timer = new Stopwatch(); timer Start(); System Collections Generic List ht = new System Collections Generic List (); for (int i = ; i < ; i++)ht Add(i); timer Stop(); Console Write(timer ElapsedMilliseconds ToString() + \\t ); Stopwatch timer = new Stopwatch(); timer Start(); for (int i = ; i < ; i++)ht Contains(i); timer Stop(); Console WriteLine(timer ElapsedMilliseconds ToString());

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