Question

    document.onkeyup = function(event) {

        //ctrl+r to refresh page, but also to set lettersGuessed by player to ''.
        //the 'r' was being recorded as a guess.
        if (event.keyCode == 73 && event.ctrlKey) {
            startGame();
        }

        //allows only A-Z on keyboard to be registered as answers
        else if (event.keyCode >= 65 && event.keyCode <= 90) {

            var key = event.key;
            console.log(computerChoice);
            if (guesses != 0) {
                    lettersGuessed += key + ', ';
                    if (key == computerChoice) {
                        wins++;
                        display.innerHTML = "You WIN! The computer chose " + computerChoice +
                                            "<br/> To play again press any button.";
                        startGame();
                    }
                    else if (key != computerChoice && guesses != 0) {
                        guesses--;
                        displayResults('Keep Guessing!', key, 'Not Telling!' , guesses);
                    }
                }
                else if (guesses == 0) {
                    losses++;
                    display.innerHTML = "You LOSE! The computer chose: " + computerChoice +
                                        "<br/> To play again press any button.";
                    startGame();
                }
            }

        //this runs when ctrl+r is hit. shouldn't this not run? for some reason its reading the ctrl part
        //when I press ctrl+r.
        else {
            alert("Only A-Z allowed.");
        }
    }

此功能是运行我的通灵游戏的主要代码。玩家有10个生命来猜测随机字母。在if语句中我设置了ctrl + r的键代码来设置播放器字母Guessed =''，我知道这也是刷新页面而我不介意。我必须这样做是因为我的其他if语句将'r'记录为来自用户的猜测。但是，现在按下ctrl会激活底部的else语句，提示“只允许A-Z”。

由于我的初始if语句，底部的else语句不应该运行吗？在警报响起之前，我正在给ctrl + r做些什么。

我正在尝试做的是当ctrl + r被击中时没有专门发出警报。

Answer 1

在浏览器中按ctrl + r默认值进行页面重新加载。要进行完整性检查，请尝试keyCode之类的任何其他i。

我也建议使用event.which作为后备选项：

 event.keyCode || event.which == 73 && event.ctrlKey

心灵游戏事件键 - Javascript

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