我对c ++很陌生,并且不知道为什么我会收到此错误,除了我认为将其用于getter方法的字符串类型。
错误消息:
C:\Users\Robin Douglas\Desktop\week6>g++ -c Student.cpp
Student.cpp:15:31: error: no 'std::string Student::get_name()' member function d
eclared in class 'Student'
Student.cpp:20:43: error: no 'std::string Student::get_degree_programme()' membe
r function declared in class 'Student'
Student.cpp:25:32: error: no 'std::string Student::get_level()' member function
declared in class 'Student'
Student.hpp
#include <string>
class Student
{
public:
Student(std::string, std::string, std::string);
std::string get_name;
std::string get_degree_programme;
std::string get_level;
private:
std::string name;
std::string degree_programme;
std::string level;
};
Student.cpp
#include <string>
#include "Student.hpp"
Student::Student(std::string n, std::string d, std::string l)
{
name = n;
degree_programme = d;
level = l;
}
std::string Student::get_name()
{
return name;
}
std::string Student::get_degree_programme()
{
return degree_programme;
}
std::string Student::get_level()
{
return level;
}
答案 0 :(得分:2)
以下代码定义字段(变量)而不是方法。
public:
Student(std::string, std::string, std::string);
std::string get_name;
std::string get_degree_programme;
std::string get_level;
然后,当你在.cpp文件中实现它时,编译器会抱怨你试图实现一个未声明的方法(因为你声明了get_name是一个变量)。
std::string Student::get_name()
{
return name;
}
要修复,只需按以下方式更改代码:
public:
Student(std::string, std::string, std::string);
std::string get_name();
std::string get_degree_programme();
std::string get_level();