cpp报错记录

报错1

报错

[Error] passing ‘const Person’ as ‘this’ argument of ‘std::string Person::get_name()’ discards qualifiers [-fpermissive]

翻译

[错误] 将“const Person”作为“std：：string Person：：get_name（）”的“this”参数传递丢弃限定符

代码段

class Person
{   
    public:
    	Person(string n,string p,string e = "***");
    	friend ostream& operator<<(ostream &out,const Person &x);
    	friend istream& operator>>(istream &in,Person &x);
        string get_phone();
        string get_email(){return email;}
        string get_name(){return name;}
   	
   	
	private:
	string phone_num;
	string name;
	string email;
};

bool operator==(const Person &x1,const Person &x2)
{
	return ((x1.get_name() == x2.get_name() && (x1.get_phone() == x2.get_phone()));
}