c++ - 如何修复 C++ 错误 : expected unqualified-id

Question

我在第 6 行收到此错误:

error: expected unqualified-id before '{' token

我不知道出了什么问题。

#include <iostream>

using namespace std;

class WordGame;
{               // <== error is here on line 6
public:

    void setWord( string word )
    {
        theWord = word;
    }
    string getWord()
    {
        return theWord;
    }
    void displayWord()
    {
        cout << "Your word is " << getWord() << endl;
    }
private:
    string theWord;
}


int main()
{
    string aWord;
    WordGame theGame;
    cin >> aWord;
    theGame.setWord(aWord);
    theGame.displaymessage();

}

Answer 1

这里不应该有分号:

class WordGame;

...但是在你的类定义的末尾应该有一个:

...
private:
    string theWord;
}; // <-- Semicolon should be at the end of your class definition