内容简介:翻译自:https://stackoverflow.com/questions/4268452/differences-between-user-created-structs-and-framework-structs-in-net
为什么C#编译器不允许你编译它:
int a; Console.WriteLine(a);
但是允许你编译:
MyStruct a; Console.WriteLine(a);
其中MyStruct定义为:
struct MyStruct
{
}
更新:在第一个案例中错误是:
Error 1 Use of unassigned local variable ‘a’
摘录:
5.3 Definite assignment
…
A struct-type variable is considered
if each of its
instance variables is considered
definitely assigned.
显然,由于你的结构没有字段,这不是问题;它被认为是明确分配的.向其添加字段应该会破坏构建.
在一个有点相关的说明:
11.3.8 Constructors No instance member function can be called until all fields of the struct being constructed have been definitely assigned.
翻译自:https://stackoverflow.com/questions/4268452/differences-between-user-created-structs-and-framework-structs-in-net
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持 码农网
本站部分资源来源于网络,本站转载出于传递更多信息之目的,版权归原作者或者来源机构所有,如转载稿涉及版权问题,请联系我们。
Pro CSS and HTML Design Patterns
Michael Bowers / Apress / April 23, 2007 / $44.99
Design patterns have been used with great success in software programming. They improve productivity, creativity, and efficiency in web design and development, and they reduce code bloat and complexit......一起来看看 《Pro CSS and HTML Design Patterns》 这本书的介绍吧!