JOptionPane取消按钮不会取消窗外？

Question

所以，我正在制作一个简单的猜谜游戏，当用户按下取消按钮时，程序不会退出循环。这是循环

while(playAgain = true){
        int n = JOptionPane.showConfirmDialog(null, fields, "Number guessing game", JOptionPane.CANCEL_OPTION);

        if(n == JOptionPane.CANCEL_OPTION){
            playAgain = false;
        }

        int randomNumber = randomNumber();

        String guess = input.getText();
        compare(randomNumber, Integer.parseInt(guess));

    }

Answer 1

应该是

while(playAgain == true){

或

while(playAgain){

不要将[=] true分配给playagain使用比较[==]。 你所做的是将true指定给playagain，然后检查是否为true。所以它总是如此