设计问题：结构或类 [英] design question : struct or class
问题描述
你好，
我有一个设计问题。我需要跟踪一些变量，并且我计划将它们放在类或结构中。
。基本上我在谈论
10个bools，20个int和2个int数组。数组的大小将取决于某些外部值（从0到最大1000）的
。我会有一个
数组，其中最多255个这样的类/结构（在大多数情况下它会更少
然后是5）
由于没有真正的商业逻辑，我的选择将是结构。但是看看内存中对象大小的
，我认为它们有点大，可以放在堆栈上，而且应该更好。这意味着我应该使用课程。
关于什么是最好的想法？
TIA
Yves
Hello,
I''ve got a design question. I need to keep track of some variables and I am
planning to put them inside a class or struct. Basically I''m talking about
10 bools, 20 ints and 2 arrays of ints. The size of the arrays would depend
on some external value (going from 0 to around 1000 max). I would have an
array of max 255 of these classes/structs (in most cases it will be less
then 5 however)
Since there''s no real business logic my choice would be structs. But looking
at the size of the objects in memory I would think they are a bit large to
put on the stack and should be better of on the heap. Which would mean I
should use classes.
Any ideas about what would be best?
TIA
Yves
推荐答案
Phoenix，
因为没有真正的业务逻辑我的选择将是结构。
结构可以具有业务逻辑。和班级一样好。
我通常会把每件事都变成一个班级，除非我知道我需要一个结构，我使用
以下知道我需要一个结构：
- 表现得像一个原始类型
- 实例大小不超过16字节
- 是不可变的
- 值语义是可取的
http://msdn.microsoft.com/library/de...Guidelines.asp
希望这有帮助
Jay
" phoenix" < PA ****** @ skynetWORK.be>在留言中写道
新闻：O1 ************** @ TK2MSFTNGP12.phx.gbl ...你好，
我是'我有一个设计问题。我需要跟踪一些变量，并且我计划将它们放在一个类或结构中。基本上我说的是10个bool，20个int和2个int数组。数组的大小
取决于一些外部值（从0到最大1000）。我会有一个最多255个这些类/结构的数组（在大多数情况下它会更少
然后是5）
因为没有真正的业务逻辑我的选择将是结构。但是
查看内存中对象的大小我认为它们有点大，可以放在堆栈上，应该更好。这意味着我应该使用课程。
关于什么是最好的想法？
TIA
Yves
Since there''s no real business logic my choice would be structs. Structs can have "business logic" as equally well as classes.
I normally make every thing a class, unless I know I need a struct, I use
the following to know I need a struct:
- act like a primitive type
- have an instance size under 16 bytes
- are immutable
- value semantics are desirable
http://msdn.microsoft.com/library/de...Guidelines.asp
Hope this helps
Jay
"phoenix" <pa******@skynetWORK.be> wrote in message
news:O1**************@TK2MSFTNGP12.phx.gbl... Hello,
I''ve got a design question. I need to keep track of some variables and I am planning to put them inside a class or struct. Basically I''m talking about
10 bools, 20 ints and 2 arrays of ints. The size of the arrays would depend on some external value (going from 0 to around 1000 max). I would have an
array of max 255 of these classes/structs (in most cases it will be less
then 5 however)
Since there''s no real business logic my choice would be structs. But looking at the size of the objects in memory I would think they are a bit large to
put on the stack and should be better of on the heap. Which would mean I
should use classes.
Any ideas about what would be best?
TIA
Yves
听起来你的对象有可能非常大。请记住
结构在堆栈上分配，这是有限的。我不知道
我的头顶堆栈大小。
" phoenix" < PA ****** @ skynetWORK.be>在消息中写道
新闻：O1 ************** @ TK2MSFTNGP12.phx.gbl ...
It sounds like your object has the potential of being quite large. Remember
that structures are allocated on the stack, which is finite. I don''t know
the stack size off the top of my head.
"phoenix" <pa******@skynetWORK.be> wrote in message
news:O1**************@TK2MSFTNGP12.phx.gbl...
你好，
我有一个设计问题。我需要跟踪一些变量，并且我计划将它们放在一个类或结构中。基本上我说的是10个bool，20个int和2个int数组。数组的大小
取决于一些外部值（从0到最大1000）。我会有一个最多255个这些类/结构的数组（在大多数情况下它会更少
然后是5）
因为没有真正的业务逻辑我的选择将是结构。但是
查看内存中对象的大小我认为它们有点大，可以放在堆栈上，应该更好。这意味着我应该使用课程。
关于什么是最好的想法？
TIA
Yves
Hello,
I''ve got a design question. I need to keep track of some variables and I am planning to put them inside a class or struct. Basically I''m talking about
10 bools, 20 ints and 2 arrays of ints. The size of the arrays would depend on some external value (going from 0 to around 1000 max). I would have an
array of max 255 of these classes/structs (in most cases it will be less
then 5 however)
Since there''s no real business logic my choice would be structs. But looking at the size of the objects in memory I would think they are a bit large to
put on the stack and should be better of on the heap. Which would mean I
should use classes.
Any ideas about what would be best?
TIA
Yves
Pheonix ...要明确的是，如果你将结构添加到.NET _collection_，
他们
无论如何都会装箱。
问候，
Jeff
Pheonix... To be clear, if you add structures to a .NET _collection_,
they
will be boxed anyway.
Regards,
Jeff
这些类/结构中最多255个数组（在大多数情况下，它将
array of max 255 of these classes/structs (in most cases it will be
less
然后5））<
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less
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