“else”错误之前预期的主要表达式[关闭]

我得到了expected primary-expression before "else"第一个 else 的错误，我不明白为什么。我对所有支撑进行了三次检查。

if(Owin = win)
{
    cout << "The computer has defeated you!\n\n";
    cout << "Would you like to play again? (Y or N) : ";
    cin >> restart;
    if(restart == 'Y' || restart == 'y');
    {
        cout << "\n\n\n";
        main()    ;
    }

    else
    {
        cout << "Good Bye!\n\n";
        system("pause");
        return(0);
    }
}
else
{
}

if(restart == 'Y' || restart == 'y');

删除那里的分号以修复错误。这;结束你的if声明，这意味着else实际上不属于任何if语句，因此出现错误。