<分区>
您好， 我正在尝试使用 std::string 变量“name”实例化一个匿名对象。但是 intellisenen 给我错误提示
E0291 no default constructor exists for class "Player" GoldGame e:\C++ Projects\Hello World\GoldGame\GoldGame.cpp 17
我提供了一个构造函数，它可以只接受一个 std::string 变量，因为其他参数都提供了默认值。
你们能解释一下吗？
更让我困惑的是，当我改变的时候
Player(name);
到
Player a(name);
或到
Player("test");
然后 intellisense 就完全没问题了。
黄金游戏.cpp
#include "stdafx.h"
#include "Creature.h"
#include "Player.h"
#include <iostream>
#include <string>
int main()
{
std::cout << "Enter your name: ";
std::string name;
std::cin >> name;
Player(name);
return 0;
}
生物.h
#pragma once
#include <string>
class Creature
{
public:
Creature(const std::string &name, const char symbol, const int health, const int damage, const int gold);
~Creature();
//getters
const std::string& getName() { return m_name; }
const char getSymbol() { return m_symbol; }
const int getHealth() { return m_health; }
const int getDamage() { return m_damage; }
const int getGold() { return m_gold; }
//health, gold and dead
void reduceHealth(const int healthMinus);
void addGold(const int gold);
bool isDead();
private:
std::string m_name;
char m_symbol;
int m_health;
int m_damage;
int m_gold;
};
生物.cpp
#include "stdafx.h"
#include "Creature.h"
Creature::Creature(const std::string & name, const char symbol, const int health, const int damage, const int gold)
:m_name(name), m_symbol(symbol), m_health(health), m_damage(damage), m_gold(gold)
{
}
Creature::~Creature()
{
}
void Creature::reduceHealth(const int healthMinus)
{
m_health -= healthMinus;
}
void Creature::addGold(const int gold)
{
m_gold += gold;
}
bool Creature::isDead()
{
if (m_health>0)
{
return true;
}
else
{
return false;
}
}
播放器.h
#pragma once
#include "Creature.h"
#include <string>
class Player :
public Creature
{
public:
Player(const std::string &name, const char symbol='@', const int health=10, const int damage=1, const int gold=0);
~Player();
const int getLevel() { return m_level; }
void levelUp();
bool hasWon();
private:
int m_level;
};
播放器.cpp
#include "stdafx.h"
#include "Player.h"
Player::Player(const std::string & name, const char symbol, const int health, const int damage, const int gold)
:Creature(name,symbol,health,damage,gold)
{
}
Player::~Player()
{
}
void Player::levelUp()
{
++m_level;
}
bool Player::hasWon()
{
if (m_level>=20)
{
return true;
}
else
{
return false;
}
}