#include <iostream>

#include <stdlib.h>

#include <string>

using namespace std;

/**

?* 定義人的類: Person

?* 數據成員姓名: m_strName

?* 成員函數: eat()

?*/

class Person

{

public:

? ? string m_strName;

void eat()

{

cout << "eat" << endl;

}

};

/**

?* 定義士兵類: Soldier

?* 士兵類公有繼承人類: public

?* 數據成員編號: m_strCode

?* 成員函數: attack()

?*/

class Soldier : public Persen

{

public:

string m_strCode;

void attack()

{

cout << "fire!!!" << endl;

}

};

int main(void)

{

? ? // 創建Soldier對象

Soldier soldier;

? ? // 給對象屬性賦值

? ? soldier.m_strName = "Jim";

soldier.m_strCode = "592";

? ? // 打印對象屬性值

cout << soldier.m_strName << endl;

cout << soldier.m_strCode << endl;

? ? // 調用對象方法

soldier.eat();

soldier.attack();

return 0;

}

運行失敗

index.cpp:28:1: error: expected class-name before '{' token

?{

?^

index.cpp: In function 'int main()':

index.cpp:42:13: error: 'class Soldier' has no member named 'm_strName'; did you mean 'm_strCode'?

? ? ?soldier.m_strName = "Jim";

? ? ? ? ? ? ?^~~~~~~~~

index.cpp:45:18: error: 'class Soldier' has no member named 'm_strName'; did you mean 'm_strCode'?

? cout << soldier.m_strName << endl;

? ? ? ? ? ? ? ? ? ^~~~~~~~~

index.cpp:48:10: error: 'class Soldier' has no member named 'eat'

? soldier.eat();

? ? ? ? ? ^~~