我有一个启动时间的关键活动,但我不理解为什么要停止关键工作。 它正在按预期开展工作,但我对其工作原因有疑虑。 为什么时间推移到关键缩编? 我没有在关键活动听众的任何地方叫停Watch。 我认为,我已经经历过一切可能的情况,但我仍感不到。

let cubeTimer = document.getElementById("cubeTimer");
let appendMinutes = document.getElementById("minutes");
let appendSeconds = document.getElementById("seconds");
let appendMilliseconds = document.getElementById("milliseconds");
let scramble = document.getElementById("scramble");

let minutes = 0;
let seconds = 0;
let milliseconds = 0.00;
let start = true;
let stop = false;
let arr = [];
let interval;
let scrambleArray = ["R", "L", "R ", "L ", "U", "D", "U ", "D ", "F", "B", "F ", "B ", "R2", "L2", "U2", "B2", "D2", "F2"];

function scrambleCube () {
    let newArr = []
    for (let i = 0; i < 21; i++) {
        if (newArr.length >= 1) {
            newArr.push(scrambleArray[Math.floor(Math.random() * 18)]);
            do {
                newArr[i] = scrambleArray[Math.floor(Math.random() * 18)]
            } while (newArr[i][0] === newArr[i - 1][0]);
        }; 
        if (newArr.length < 1) {
            newArr.push(scrambleArray[Math.floor(Math.random() * 18)]);
        };
        
    };

    for (let i = 0; i < newArr.length; i++) {
        newArr[i] = " " + newArr[i]
    };

    scramble.innerHTML = newArr;
    
    //console.log(newArr)
    
}
scrambleCube()

document.addEventListener("keydown", () => {
    
    arr.push("a");
    if (arr.length > 10) {
        cubeTimer.style.color = "green";
        cubeTimer.style.fontSize = "40px";
        start = true;
        stop = false;
        minutes = 0;
        seconds = 0;
        milliseconds = 0.00;
        appendMinutes.innerHTML = "00";
        appendSeconds.innerHTML = "00";
        appendMilliseconds.innerHTML = "00";
    } else if (arr.length < 10) {
        cubeTimer.style.color = "red";
    }

    if (start === false) { stop = true };
    
    
});

document.addEventListener("keyup", () => {
    start = false;
    cubeTimer.style.color = "green";
    if (arr.length > 10) {
        interval = setInterval(stopWatch, 10);    
    }
    arr = [];
});



function stopWatch () {
    if (stop === true) {  
        clearInterval(interval);
        scrambleCube()
    };

    milliseconds++;

    if (milliseconds == 100) {
        seconds++;
        milliseconds = 0;
    };
    
    if  (seconds == 60) {
        minutes++;
        seconds = 0;
    };

    let milliString = milliseconds;
    let secondString = seconds;
    let minuteString  = minutes;
    
    if (minutes < 10) {
        minuteString = "0" + minuteString;
    };

    if (seconds < 10) {
        secondString = "0" + secondString;
    };

    if (milliseconds < 10) {
        milliString = "0" + milliString;
    };

    appendMinutes.innerHTML = minuteString;
    appendSeconds.innerHTML = secondString;
    appendMilliseconds.innerHTML = milliString;
    
};