结构体定义

[M0605050215]

template <class T>
struct Node
{
	T data;
	Node<T>* next;
};
与这样定义结构体有区别???
template <class T>
typedef struct
{
	T data;
	Node<T>* next;
}Node;

为什么我用后者出了很多错误,而前者没有报错,,,,

[HelloDan]

template <class T>
typedef struct abc
{
    T data;
    Node<T>* next;
}Node;
//这样试一下看看怎样

[M0605050215]

同样是不行啊.....不知道为什么呢..
我把我代码贴部分上来....请大家指点!!!!

第二种形式的:
#include<iostream>
using namespace std;

template <class T>
typedef struct
{
	T data;
	Node* next;
}Node;

template <class T>
class LinkList
{
	private:
		Node<T> *first;
        int length;
	public:
		LinkList() {first=NULL;length=0;}
		LinkList(T *a,int n);
		int Locate(T x);
		int Del(T x);
		void Insert(int i,T x);
		T Get(int i);
		int GetLength() {return length;}
		ostream& Print(ostream&);
		~LinkList();
};

错误如下:
一些慕名的错误,,,汗!!!
main.cpp
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(9) : error C2059: syntax error : '<end Parse>'
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(11) : error C2954: template definitions cannot nest
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(15) : error C2143: syntax error : missing ';' before '<'
        c:\documents and settings\administrator\桌面\test\linklist\linklist.h(27) : see reference to class template instantiation 'LinkList<T>' being compiled
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(15) : error C2501: 'Node' : missing storage-class or type specifiers
        c:\documents and settings\administrator\桌面\test\linklist\linklist.h(27) : see reference to class template instantiation 'LinkList<T>' being compiled
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(15) : error C2059: syntax error : '<'
        c:\documents and settings\administrator\桌面\test\linklist\linklist.h(27) : see reference to class template instantiation 'LinkList<T>' being compiled
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(15) : error C2238: unexpected token(s) preceding ';'
        c:\documents and settings\administrator\桌面\test\linklist\linklist.h(27) : see reference to class template instantiation 'LinkList<T>' being compiled
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(18) : error C2501: 'first' : missing storage-class or type specifiers
        c:\documents and settings\administrator\桌面\test\linklist\linklist.h(27) : see reference to class template instantiation 'LinkList<T>' being compiled
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(18) : error C2501: 'length' : missing storage-class or type specifiers
        c:\documents and settings\administrator\桌面\test\linklist\linklist.h(27) : see reference to class template instantiation 'LinkList<T>' being compiled
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(19) : error C2146: syntax error : missing ';' before identifier 'LinkList'
        c:\documents and settings\administrator\桌面\test\linklist\linklist.h(27) : see reference to class template instantiation 'LinkList<T>' being compiled
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(45) : error C2244: 'LinkList<T>::LinkList<T>::LinkList<T>' : unable to resolve function overload
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(47) : error C2954: template definitions cannot nest
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(48) : error C2039: 'Locate' : is not a member of 'LinkList<T>'
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(63) : error C2039: 'Get' : is not a member of 'LinkList<T>'
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(79) : error C2039: 'Del' : is not a member of 'LinkList<T>'
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(104) : error C2039: 'Insert' : is not a member of 'LinkList<T>'
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(131) : error C2039: 'Print' : is not a member of 'LinkList<T>'
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(146) : error C2039: '__dtor' : is not a member of 'LinkList<T>'
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(146) : error C2935: 'LinkList<T>' : template-class-id redefined as a global function
c:\documents and settings\administrator\桌面\test\linklist\main.cpp(35) : error C2593: 'operator >>' is ambiguous
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(15) : error C2143: syntax error : missing ';' before '<'
        c:\documents and settings\administrator\桌面\test\linklist\main.cpp(36) : see reference to class template instantiation 'LinkList<struct DATA>' being compiled
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(15) : error C2501: 'Node' : missing storage-class or type specifiers
        c:\documents and settings\administrator\桌面\test\linklist\main.cpp(36) : see reference to class template instantiation 'LinkList<struct DATA>' being compiled
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(15) : error C2059: syntax error : '<'
        c:\documents and settings\administrator\桌面\test\linklist\main.cpp(36) : see reference to class template instantiation 'LinkList<struct DATA>' being compiled
c:\documents and settings\administrator\桌面\test\linklist\linklist.h(15) : error C2238: unexpected token(s) preceding ';'
        c:\documents and settings\administrator\桌面\test\linklist\main.cpp(36) : see reference to class template instantiation 'LinkList<struct DATA>' being compiled
执行 cl.exe 时出错.

当我采用前者定义时就不是这样>....
#include<iostream>
using namespace std;

template <class T>
struct Node
{
	T data;
	Node* next;
};

template <class T>
class LinkList
{
	private:
		Node<T> *first;
        int length;
	public:
		LinkList() {first=NULL;length=0;}
		LinkList(T *a,int n);
		int Locate(T x);
		int Del(T x);
		void Insert(int i,T x);
		T Get(int i);
		int GetLength() {return length;}
		ostream& Print(ostream&);
		~LinkList();
};
Compiling...
main.cpp

main.obj - 0 error(s), 0 warning(s)

[nicky_zs]

你第二个定义里面，Node这个名字还没有定义出来，你在结构体里面就先使用它声明指针Node<T> *next了。。。 不出错难道编译器还会猜这个Node就是你现在正在定义的东东？

[HelloDan]

template <class T>
typedef struct
{
T data;
Node* next; //这里之前没有Node的定义啊。
}Node;

[zhangjingshiqiaokeli]

我觉得模板与typedef之间有冲突，直接这么用
template <class T> struct LNode{
T data;//值域
LNode* next; //指针域
};