XXXDlg.obj : error LNK2005: "public: __thiscall Student::Student(void)" (??0Student@@QAE@XZ) already defined in 系统.obj
XXXXX.obj : error LNK2001: unresolved external symbol "public: __thiscall Student::~Student(void)" (??1Student@@QAE@XZ)
XXXDlg.obj : error LNK2001: unresolved external symbol "public: __thiscall Student::~Student(void)" (??1Student@@QAE@XZ)
Debug/XXX.exe : fatal error LNK1120: 1 unresolved externals
----------------------------------------------
可能与我添加的这个Student.h文件有关,我是手工添加的 书上说选择项目|添加新类命令 ,类别为“C++”系统自动生成类和对应文件 可我只添加了个.h文件
class Student
{
public:
CString m_strName;
CString m_strNo;
CString m_strClassName;
Student(void);
~Student(void);
};
Student::Student(void)
{
m_strName=_T("");
m_strNo=_T("");
m_strClassName=_T("");
}
XXXXX.obj : error LNK2001: unresolved external symbol "public: __thiscall Student::~Student(void)" (??1Student@@QAE@XZ)
XXXDlg.obj : error LNK2001: unresolved external symbol "public: __thiscall Student::~Student(void)" (??1Student@@QAE@XZ)
Debug/XXX.exe : fatal error LNK1120: 1 unresolved externals
----------------------------------------------
可能与我添加的这个Student.h文件有关,我是手工添加的 书上说选择项目|添加新类命令 ,类别为“C++”系统自动生成类和对应文件 可我只添加了个.h文件
class Student
{
public:
CString m_strName;
CString m_strNo;
CString m_strClassName;
Student(void);
~Student(void);
};
Student::Student(void)
{
m_strName=_T("");
m_strNo=_T("");
m_strClassName=_T("");
}
Student::Student(void)
{
m_strName=_T("");
m_strNo=_T("");
m_strClassName=_T("");
}
移走。
#ifndef
#define
...
#endif
加预编译指令,防止头文件重复包含