Question

在一个作业项目中，我需要使用一个对象，并且它的初始化由if条件控制，所以看起来有点复杂，因此我想将初始化过程作为一个函数。但是我可以在函数内初始化这个对象然后在外面使用吗？

以下是代码段：

void playOneGame(Lexicon& dictionary) {
// TODO: implement
setConsoleClearEnabled(true);

// initialize object: if yes, generate it randomly, else by human input
if (getYesOrNo("Do you want to generate a random board?")) {
    // generate boggle randomly by using constructor
    Boggle myBoggle(dictionary, "");
} else {
    string boardText = getLine("Type the 16 letters to appear on the board:"); 
    //boardText = stripText(boardText);
    while (boardText.length() != 16 || containsNonAlpha(boardText)) {
        cout << "That is not a valid 16-letter board string. Try again." << endl;
        boardText = getLine("Type the 16 letters to appear on the board:");
    }  

}

Answer 1

void playOneGame(Lexicon& dictionary) {
// TODO: implement
setConsoleClearEnabled(true);

Boggle myBoggle = setupBoard(dictionary);

}

Boggle setupBoard (Lexicon& dictionary) {
if (getYesOrNo("Do you want to generate a random board?")) {
    Boggle myBoggle(dictionary, "");
    return myBoggle;
} else {
    string boardText = getLine("Type the 16 letters to appear on the board:");
    //boardText = stripText(boardText);
    while (boardText.length() != 16 || containsNonAlpha(boardText)) {
        cout << "That is not a valid 16-letter board string. Try again." << endl;
        boardText = getLine("Type the 16 letters to appear on the board:");
    }
    Boggle myBoggle(dictionary, boardText);
    return  myBoggle;
}

}

这是解决方案

有没有办法初始化函数内部的对象，然后在函数外部使用它？

1 个答案: