关于字符串任意输入并且识别空格的问题

#include<iostream>
#include<string>
using namespace std;

class Person
{
    private:
        string num;   //编号
        string name;  //姓名
    public:
        Person();
        ~Person()
        {}
        void Person::enter();
        void print();
};

Person::Person()
{
    num='\0';
    name='\0';
}

void Person::enter()   //Person类数据信息的输入
{
    cout<<"输入编号:";
    cin>>num;

    cout<<"输入姓名:";
    cin>>name;
}

void Person::print()  //Person类数据信息的输出
{
    cout<<"编号："<<num<<endl;
    cout<<"姓名："<<name<<endl;
}



class Teacher:public Person  
{
    private:
        string zhichen; //职称
        string bumen;   //部门
    public:
        Teacher():Person()
        {
            zhichen='\0';
            bumen='\0';
        }
        ~Teacher()
        {}

        void enter()
        {
            Person::enter();
            cout<<"输入职称：";
            cin>>zhichen;
            cout<<"输入部门：";
            cin>>bumen;
        }

        void print()
        {
            Person::print();
            cout<<"职称："<<zhichen<<endl;
            cout<<"部门："<<bumen<<endl;
        }
};

int main()
{
        Teacher t1;
   
    cout<<"教师信息输入："<<endl;
    t1.enter();
    cout<<"***************************************"<<endl;
    cout<<"教师信息显示："<<endl;
    t1.print();

    return 0;
}
Teacher类中的职称和部门如果要输入空格怎么改？如输入职称中:gaoji jiaoshi