c++ - 无法访问类 'Soldier' 中声明的私有(private)成员

Question

我是 OOP 的新手，我不明白如何将参数传递给类。

类的声明:

class Soldier
{
    Soldier(int SetHealth, int SetStrength);

private:
    int health;
    int strength;

public:
    void attacked();
    void healed();
    int getHealth();
    int getStrength();
};

构造函数的定义:

    Soldier::Soldier(int SetHealth, int SetStrength):
        health(SetHealth),
        strength(SetStrength)
    {

    }

当我尝试将参数传递给类时，它会这样说:

    1>------ Build started: Project: ConsoleApplication6, Configuration: Debug Win32 ------
    1>  ConsoleApplication6.cpp
    1>c:\users\user\documents\visual studio 2012\projects\consoleapplication6\consoleapplication6\consoleapplication6.cpp(11): error C2248: 'Soldier::Soldier' : cannot access private member declared in class 'Soldier'
    1>          c:\users\user\documents\visual studio 2012\projects\consoleapplication6\consoleapplication6\soldier.h(7) : see declaration of 'Soldier::Soldier'
    1>          c:\users\user\documents\visual studio 2012\projects\consoleapplication6\consoleapplication6\soldier.h(6) : see declaration of 'Soldier'
    ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

Answer 1

您的构造函数是 private(正如错误消息所说)。 默认情况下，如果您未指定访问级别，则 Class 的每个成员都是 private。