三元运算符与IF ELSE 的效率比较

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1. C#

DateTime dtStart = DateTime.Now;

for (double i = 0; i < 100000000; i++)

{

int temp = 0;

if (temp==0)

{

temp = 1;

}

else

{

temp = 2;

}

}

DateTime dtEnd = DateTime.Now;

Console.WriteLine(dtEnd.Millisecond – dtStart.Millisecond);
dtStart = DateTime.Now;

for (double i = 0; i < 100000000; i++)

{

int temp = 0;

temp = temp == 0 ? 1 : 2;

}

dtEnd = DateTime.Now;

Console.WriteLine(dtEnd.Millisecond – dtStart.Millisecond);

Console.ReadLine();

输出:0小时0分0秒628毫秒

0小时0分0秒480毫秒

以上C#代码测试得出结论:同样的操作三元运算符的效率高。

转载于:https://www.cnblogs.com/love-wen-qin-free/archive/2012/01/31/2332734.html