Can a struct be derived? in C#, in C++ - 未名空间MITBBS历史存档

国际科技财经博客移民网络热点娱乐民生时事公众号

Redian新闻

>未名空间

>DotNet - 窗口里的风景

Can a struct be derived? in C#, in C++

Can a struct be derived? in C#, in C++# DotNet - 窗口里的风景

f*l2003-11-04 08:11

1 楼

can you say:
strcut A {
...
}
struct B : A {
...
}

k*i2003-11-04 08:11

2 楼

I don't think so

【在 f******l 的大作中提到】

: can you say:
: strcut A {
: ...
: }
: struct B : A {
: ...
: }

p*n2003-11-04 08:11

3 楼

in C++, yes, a struct can inherit from another. actually in C++ world, the only
difference btw a struct and a class is that the default access modifiers for
methods are different. for class: private for struct:public
in C#, it is a different story, structs cannot inherit from other structs
however, they can derive from interfaces. it is quite different from class
in C#.

【在 k****i 的大作中提到】

: I don't think so

a*t2003-11-04 08:11

4 楼

Could somebody provide some sample code on how this is done?
if have a list of items, and every item has some common properties (same as
the original question). Is there a way so I can access each item's properties
with something like item[i].properties ?

only

【在 p***n 的大作中提到】

: in C++, yes, a struct can inherit from another. actually in C++ world, the only
: difference btw a struct and a class is that the default access modifiers for
: methods are different. for class: private for struct:public
: in C#, it is a different story, structs cannot inherit from other structs
: however, they can derive from interfaces. it is quite different from class
: in C#.

d*p2003-11-04 08:11

5 楼

While a struct cannot inherit from another struct, it
can extend a interface. Try to define an interface
for those common properties;

【在 a*******t 的大作中提到】

: Could somebody provide some sample code on how this is done?
: if have a list of items, and every item has some common properties (same as
: the original question). Is there a way so I can access each item's properties
: with something like item[i].properties ?
:
: only