Question

C++构造函数报错error LNK2001:"无法解析的外部符号"

class CEmployee
{
public:
char m_name[30];

public:
CEmployee();
CEmployee(const char* nm)
{
strcpy(m_name,nm);
}
};

class CManeger:public CEmployee
{
public :
float m_salary;
public:
CManager(const char* nm)
{
m_salary=15000.0;
}
void setSalary(float salary)
{
m_salary=salary;
}
}

void main()
{
CManager aManager("小明");
printf("%s\t%f\n",aManager.m_name,aManager.m_salary);
}

Answer 1

已改，看注释

class CEmployee
{
public:
    char m_name[30];

public:
    CEmployee();
    CEmployee(const char* nm)
    {
        strcpy(m_name,nm);
    }
};

class CManager:public CEmployee  // CManager写错
{
public :
    float m_salary;
public:
    CManager(const char* nm) : CEmployee(nm)  // 需要调用基类构造函数
    {
        m_salary=15000.0;
    }
    void setSalary(float salary)
    {
        m_salary=salary;
    }
};  // 漏了分号

void main()
{
    CManager aManager("小明");
    printf("%s\t%f\n",aManager.m_name,aManager.m_salary);
}