如何使用泛型？ [英] How to use generics?
问题描述
大家好，
在下面的示例中，我想用泛型替换int。在
订单字中，我想用float，double，byte或
替换int。我试图找到一个通用的界面或
这样的东西，但我没找到。
public static int MaxSum（int [来源）
{
int maxSoFar = 0，maxEndingHere = 0;
for（int i = 0; i< source.Length ; i ++）
{
maxEndingHere = Math.Max（maxEndingHere + source [i]，
0）;
maxSoFar = Math.Max（maxSoFar，maxEndingHere）;
}
返回maxSoFar;
}
想用公共静态替换此方法签名T $ / $
MaxSum< T>（T [] source）其中T：I ???。谢谢你的帮助。
马丁
Hi all,
In the following example, I''d like to replace int by a generic. In
order word, I would like to replace int by float, double, byte or
something like that. I''ve tried to find a common interface or
something like that, but I didn''t find.
public static int MaxSum(int[] source)
{
int maxSoFar = 0, maxEndingHere = 0;
for (int i = 0; i < source.Length; i++)
{
maxEndingHere = Math.Max(maxEndingHere + source[i],
0);
maxSoFar = Math.Max(maxSoFar, maxEndingHere);
}
return maxSoFar;
}
In would like to replace this method signature by public static T
MaxSum<T>(T[] source) where T : I???. Thank you for your help.
Martin
推荐答案
Martin< ma ** *******@gmail.com写道：
Martin <ma*********@gmail.comwrote:
在下面的例子中，我想用泛型替换int。在
订单字中，我想用float，double，byte或
替换int。我试图找到一个共同的界面或
这样的东西，但我没找到。
In the following example, I''d like to replace int by a generic. In
order word, I would like to replace int by float, double, byte or
something like that. I''ve tried to find a common interface or
something like that, but I didn''t find.
没有人，我很害怕。这是仿制药的一种东西，而不是以现在的形式工作:(
-
Jon Skeet - < sk *** @ pobox.com>
http： //www.pobox.com/~skeet 博客： http：// www.msmvps.com/jon.skeet
如果回复小组，请不要给我发邮件
There isn''t one, I''m afraid. This is the kind of thing that generics
just don''t work for in their current form :(
--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
If replying to the group, please do not mail me too
" Jon Skeet [C＃MVP]"< sk *** @ pobox.comwrote in message
新闻：MP ******************* *@msnews.microsoft.com ..
"Jon Skeet [C# MVP]" <sk***@pobox.comwrote in message
news:MP********************@msnews.microsoft.com.. .
没有人，我很害怕。这是仿制药的一种东西。 >
只是不能以他们目前的形式工作:(
There isn''t one, I''m afraid. This is the kind of thing that generics
just don''t work for in their current form :(
也不会在即将推出的版本中，AFAIK ...
你知道这种功能是否被考虑用于未来......？b $ b？
-
http：// www。 markrae.net
Nor in the forthcoming version, AFAIK...
Would you know if this sort of functionality is even being considered for
the future...?
--
http://www.markrae.net
嗨John和Mark，
谢谢你的回答。所以，如果我理解得很好，我必须切割并使用不同的签名来粘贴这个方法吗？
- public static int MaxSum（int [] source）
- public static float MaxSum（float [] source）
- public static double MaxSum（double [] source）
- etc.
马丁
Hi John and Mark,
Thank you for you answer. So, if I understand well, I have to cut and
paste this method with different signature?
- public static int MaxSum(int[] source)
- public static float MaxSum(float[] source)
- public static double MaxSum(double[] source)
- etc.
Martin
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