非类类型的成员的错误请求 - 在复制的对象上使用方法时出现问题

问：

我只是在学习C++。我想创建一个格斗文本游戏。一开始，我创造了战士。然后我让玩家选择一个战斗机，我创建一个新对象来存储有关所选战斗机的信息。这是我的代码：

fighter.h

#include <string>
using namespace std;
class Fighter
{
        int charNumber;
        string name;
        int attack;
        int def;
        int hp;
        int power;
        int regeneration;
        string background;
        int choosingWarrior;
    public:

        Fighter(int charNumber = 99, string name = "Default" , int attack = 10, int def = 10, int hp = 10, int power = 10, int regeneration = 10, string background = "default");
        ~Fighter();

        int showInfo() const;
        void chooseCharacter();
};

fighter.cpp

#include "fighter.h"
#include <iostream>
#include <string>
Fighter::Fighter(int charNumber, string name, int attack, int def, int hp, int power, int regeneration, string background) {
    this->charNumber = charNumber;
    this->name = name;
    this->attack = attack;
    this->def = def;
    this->hp = hp;
    this->power = power;
    this->regeneration = regeneration;
    this->background = background;
}
Fighter::~Fighter()
{

}
int Fighter::showInfo() const
{
    cout << "Fighter number: " << charNumber << endl;
    cout << "Fighter name: " << name << endl;
    cout << "Statistics:" << endl;
    cout << "Attack: " << attack << endl;
    cout << "Defense: " << def << endl;
    cout << "Health: " << hp << endl;
    cout << "Power: " << power << endl;
    cout << "Regeneration: " << regeneration << endl;
    cout << "Background: " << background << endl;


}

main.cpp （main.cpp|39|error： 请求 'choosingFighter' 中的成员 'showInfo'，其非类类型为 'Fighter（int， std：：__cxx11：：string， int， int， int， int， int， std：__cxx11：：string）' {aka 'Fighter（int， std：：__cxx11：：basic_string， int， int， int， int， std：：__cxx11：：basic_string）'}| ||=== 构建失败：1 个错误、0 个警告（0 分钟、0 秒） ===|

#include <iostream>
#include <string>
#include "fighter.h"
using namespace std;


/* run this program using the console pauser or add your own getch, system("pause") or input loop */
int main() {
    Fighter Scorpion(1, "Scorpion", 100, 100, 100, 100, 100, "Hanzo Hasashi, better known as Scorpion, is a resurrected ninja in the"
                  "Mortal Kombat fighting game series as well as the mascot of the games."
                    "He is one of the very few original characters debuting in the first"
                    "Mortal Kombat arcade game. He holds the distinction, along with"
                    "Raiden and Sub-Zero (in one form or another),"
                    "of appearing in every generation of Mortal Kombat games as a playable character." );
    Fighter Shodan(2, "Shodan", 90, 110, 110, 90, 100, "S.H.O.D.A.N. (Sentient Hyper-Optimized Data Access Network),"
                   "later referred to as SHODAN"
                   "is an Artificial Intelligence and the main antagonist of the System Shock series."
                   "She is voiced by game writer and designer Terri Brosius." );
    Fighter Legion(3, "Legion", 110, 90, 90, 110, 100, "Legion is the name taken by the gestalt consciousness formed by 1,183 geth"
                   "programs inhabiting a unique geth \"mobile platform\"." );
    Fighter choosingFighter(int charNumber, string name, int attack, int def, int hp, int power, int regeneration, string background);
    Scorpion.showInfo();
    Shodan.showInfo();
    Legion.showInfo();
    int choice;
    cout << "Choose your character (write a number) 1. Scorpion; 2. Shodan; 3. Legion: " << endl;
    cin >> choice;
    do
    {
    if (choice == 1)
        Fighter choosingFighter = Scorpion;
    else if (choice == 2)
        Fighter choosingFighter = Shodan;
    else if (choice == 3)
        Fighter choosingFighter = Legion;
    else
        cout << "Wrong number try again";
    } while (choice != (1 || 2 || 3));
    choosingFighter.showInfo();


    return 0;
}

怎么了？在代码的这一部分中，我创建了一个新对象

Fighter choosingFighter(int charNumber, string name, int attack, int def, int hp, int power, int regeneration, string background);

在这里，我根据玩家选择的战斗机复制我的新对象

   if (choice == 1)
        Fighter choosingFighter = Scorpion;
    else if (choice == 2)
        Fighter choosingFighter = Shodan;
    else if (choice == 3)
        Fighter choosingFighter = Legion;
    else
        cout << "Wrong number try again";
    } while (choice != (1 || 2 || 3));

在这里我使用我的方法，但我收到一个错误：

choosingFighter.showInfo();

（对非类类型的成员的错误请求）

我应该在代码中更改哪些内容？