类，字符串，在VS.NET中学习 [英] classes, strings, learning in VS.NET
问题描述
我正在用Bjarne Stroustrup的书学习c ++，我只需在他的书中输入
到Visual Studio .NET中。对于
来说，这是一个好的编译器吗？我开始怀疑了......它需要是没有.NET框架的ANSI C ++
。
无论如何，什么''错了：
=====================>
班级员工{
短片;
公开：
员工（）;
};
void main（）{
员工e =员工（）;
}
< ========= ========
我把它放在1个文件中并构建，VS抱怨：
错误LNK2001：未解析的外部符号public ：__thiscall
员工::员工（无效）" （?? 0Employee @@ $$ FQAE @ XZ）
致命错误LNK1120：1个未解决的外部
TIA
FQAE @ XZ）
致命错误LNK1120：1个未解决的外部因素
TIA
An Ony写道：
这真的是你的名字吗？你的电子邮件地址无效......
我只是用Bjarne Stroustrup的书来学习c ++，我只是在他的书中输入了Visual Studio中的内容。净。这对
来说是否是一个好的编译器？我开始怀疑了......它需要是ANSI C ++
这是一个很好的编译器，至少是2003版本。
无论如何，这有什么问题：
=====================>
班级员工{
短部门;
公开：
员工（）;
这里你声明你将为你的员工提供一个构造函数
类。
后来，链接器告诉你它无法找到一个。所以要么删除
这一行，编译器会自动为你生成一个构造函数
或保留你的承诺并实现它：
员工::员工（）{
//做任何有用的事情
}
};
无效main（）{
int main（）{
不允许使用main。
员工e =员工（）;
看起来很奇怪。为什么不简单：
员工e;
}
希望这会有所帮助，
Christoph
> >我正在学习使用Bjarne Stroustrup的书来学习c ++，而我只需要
类型他的书中的Visual Studio是什么。净。这对
来说是否是一个好的编译器？我开始怀疑了......它需要是ANSI
C ++
这是一个很好的编译器，至少是2003版本。
无论如何，这有什么问题：
=====================>
班级员工{<短片;
公开：
员工（）;
在此声明您将为Employee
类提供构造函数。
稍后，链接器会通知您它无法找到。所以要么删除这一行，编译器会自动为你生成一个构造函数
或者保守你的承诺并实现它：
员工::员工（）{
/ /做任何有用的事情
}
};
void main（）{
int main（）{
主不允许使用void。
员工e =员工（）;
看起来很奇怪。为什么不简单：
员工e;
}
啊谢谢，我''我现在去试试吧。我习惯用Java编程，这就是我认为它是逻辑的。那本书说，没有声明没有
初始化，所以不是雇员e;有点不对？
Hi,
I''m just learning c++ with the book from Bjarne Stroustrup and I just type
what is in his book into Visual Studio .NET. Is that a good compiler for
that or not? I''m beginning to have my doubts... and it needs to be ANSI C++
without the .NET framework.
anyway, what''s wrong with this:
=====================>
class Employee {
short dept;
public:
Employee();
};
void main(){
Employee e = Employee();
}
<=================
I just put this in 1 file and build, VS complains:
error LNK2001: unresolved external symbol "public: __thiscall
Employee::Employee(void)" (??0Employee@@$$FQAE@XZ)
fatal error LNK1120: 1 unresolved externals
TIA
FQAE@XZ)
fatal error LNK1120: 1 unresolved externals
TIA
An Ony wrote:
Is that really your name? And your email address is invalid...
I''m just learning c++ with the book from Bjarne Stroustrup and I just type
what is in his book into Visual Studio .NET. Is that a good compiler for
that or not? I''m beginning to have my doubts... and it needs to be ANSI C++
It is a good Compiler, at least the 2003 version.
anyway, what''s wrong with this:
=====================>
class Employee {
short dept;
public:
Employee();
Here you declare that you will provide a constructor for your Employee
class.
Later, the linker informs you that it couldnt find one. So either remove
this line and the compiler generates a Constructor automatically for you
or keep your promise and implement it:
Employee::Employee() {
// Do whatever is useful here
}
};
void main(){
int main() {
void is not allowed for main.
Employee e = Employee();
Looks weird. Why not simply:
Employee e;
}
Hope this helps,
Christoph
> > I''m just learning c++ with the book from Bjarne Stroustrup and I just
typewhat is in his book into Visual Studio .NET. Is that a good compiler for
that or not? I''m beginning to have my doubts... and it needs to be ANSIC++
It is a good Compiler, at least the 2003 version.anyway, what''s wrong with this:
=====================>
class Employee {
short dept;
public:
Employee();
Here you declare that you will provide a constructor for your Employee
class.
Later, the linker informs you that it couldnt find one. So either remove
this line and the compiler generates a Constructor automatically for you
or keep your promise and implement it:
Employee::Employee() {
// Do whatever is useful here
}};
void main(){
int main() {
void is not allowed for main.Employee e = Employee();
Looks weird. Why not simply:
Employee e;}
ah thanks, I''ll go try it now. I''m used to program in Java so that''s how I
thought it was logic. And that book said, "don''t declare without
initialization", so isn''t "Employee e;" kinda wrong?
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