在c++中使用类

我试图使用类，但程序不会运行。怎样才能解决这个问题?请记住，我是c++的初学者。

#include <iostream>
#include <string>
#include <fstream>// enable writing to and reading from files
#include <cstdlib>
#include <time.h>
using namespace std;
//Globals
//----------------------------------------------------------------------------------------------------------------------------
class Person
{
public:
    Person() {cout<<"ntBuilding a Person.";}
    ~Person() {cout<<"ntDestroying a Person.";}
    //Accessor Methods
    void setPersonName(string X) {PersonName=X; }
    void setOccupation(string X) {Occupation=X; }
    void setLocation(string X) {Location=X; }
    void setReferences(string X) {References=X; }
    string GetPersonName() {return PersonName;}
    string GetOccupation() {return Occupation;}
    string GetLocation() {return Location;}
    string GetReferences() {return References;}
private:
    string PersonName ;
    string Occupation ;
    string Location;
    string References;
};//----------------------------------------------------------------------------------------------------------------------------
//Function prototypes
void createperson();
void editperson();
void displayperson();
void saveperson();
void loadperson();
Person*CG;
int main (int argc, char *argv[])
{
    char choose[10] = "";
    CG = new Person ();
    cout<<"nt Personnel database 1.0n";
    //system ("CLS");
    while (choose [0] != 'q')
    {
        system ("CLS");
        cout<<"nt---------------------Main Menu---------------------n";
        cout<<"nt| |n";
        cout<<"nt| (c) Create person |n";
        cout<<"nt| (E) edit information |n";
        cout<<"nt| (D) display person |n";
        cout<<"nt| (S) Save person |n";
        cout<<"nt| (L) Load person |n";
        cout<<"nt| (Q) quit |n";
        cout<<"nt| |n";
        cout<<"nt---------------------------------------------------nnt";
        cin>>choose;
        //system ("CLS");
        switch (choose [0])
        {
            //system ("CLS");
        case 'c': createperson(); break;
        case 'e': editperson(); break;
        case 'd': displayperson(); system ("pause"); break;
        case 's': saveperson(); break;
        case 'l': loadperson(); break;
        case 'q': cout<<"ntExiting main menu..."; break;
        default :"ntInvalid input!";
        }
    }
    system ("pause");
    return 0;
}
void createPerson()
{
    CG=new Person();
}
//----------------------------------------------------------------------------------------------------------------------------
void editPerson()
{
    string TEMP;
    system ("CLS");
    cout<<"nnt---------------------EDIT person ---------------------------";
    cout<<"nt NAME: ";
    cin.ignore();
    getline (cin,TEMP);
    CG->setPersonName(TEMP);
    cout<<"nt Occupation: ";
    getline (cin,TEMP);
    CG->setOccupation(TEMP);
    cout<<"nt Location: ";
    getline (cin,TEMP);
    CG->setLocation(TEMP);
    cout<<"nt References: ";
    getline (cin,TEMP);
    CG->setReferences(TEMP);
}
//----------------------------------------------------------------------------------------------------------------------------
void displayPerson()
{
    system("CLS");
    cout<<"nnt---------------------person information----------------------";
    cout<< "ntName: "<<CG->GetPersonName();
    cout<< "ntOccupation: "<<CG->GetOccupation();
    cout<< "ntLocation: "<<CG->GetLocation();
    cout<< "ntReferences: "<<CG->GetReferences();
    cout<<"nnt---------------------------------------------------------------nn";
}
//----------------------------------------------------------------------------------------------------------------------------
void savePerson()
{
    try
    {
        ofstream DATAFILE;
        DATAFILE.open("Data1.file",ios::out);
        DATAFILE <<CG->GetPersonName ()<<"n";
        DATAFILE <<CG->GetOccupation ()<<"n";
        DATAFILE <<CG->GetLocation ()<<"n";
        DATAFILE <<CG->GetReferences ()<<"n";
        DATAFILE.close(); //Prevents data from getting corrupt incase of sudden shutdown
        cout<<"nt Success! Data was saved to file.";
    }
    catch (exception x)
    {
        cout<<"nt File Error! Could not SAVE PERSON.";
    }
}
//----------------------------------------------------------------------------------------------------------------------------
void loadperson()
{
    try
    {
        string TEMP;
        ifstream DATAFILE;
        DATAFILE.open("Data1.file",ios::in);
        getline (DATAFILE,TEMP);
        CG->setPersonName ();
        getline (DATAFILE,TEMP);
        CG->setOccupation ();
        getline (DATAFILE,TEMP);
        CG->setLocation ();
        getline (DATAFILE,TEMP);
        CG->setReferences ();
        DATAFILE.close();
    }
    catch (exception x)
    {
        cout<<"nt File Error! Unable to load data.";
    }
}
//----------------------------------------------------------------------------------------------------------------------------

5   IntelliSense: too few arguments in function call    c:userstoshibadocumentsvisual studio 2010projectstrial and errortrial and errorbel class.cpp    136
6   IntelliSense: too few arguments in function call    c:userstoshibadocumentsvisual studio 2010projectstrial and errortrial and errorbel class.cpp    138
7   IntelliSense: too few arguments in function call    c:userstoshibadocumentsvisual studio 2010projectstrial and errortrial and errorbel class.cpp    140
8   IntelliSense: too few arguments in function call    c:userstoshibadocumentsvisual studio 2010projectstrial and errortrial and errorbel class.cpp    142

错误1:'Person::setPersonName':函数不接受0个参数c:userstoshibadocumentsvisual studio 2010projects试错试错bel class.cpp 136c:userstoshibadocumentsvisual studio 2010projectstrial and Error trial and Error bel class.cpp 138 .c: 'Person:: setooccupation ':函数不接受0个参数c:userstoshibadocumentsvisual studio 2010projectstrial and Error trial and Error bel class.cpp 140 .c: 'Person::setLocation':函数不接受0个参数c:userstoshibadocumentsvisual studio 2010projects试错试错bel class.cpp 142