我正在开发一个21点游戏。到目前为止，除了这个小细节之外，一切都正常。基本上，开始游戏按钮只应在游戏之前和游戏之后可见。我没有问题，可以将其设置为隐藏，但是当我完成一局游戏时，它不起作用。
function startGame() { startGameButton.style.visibility = "hidden"; if (!player.playerName) { player.playerName = prompt("你叫什么名字？") player.chips = 100 playerEl.textContent = "玩家：" + player.playerName; } if (cards.length < 2) { let bet = prompt('你想下注多少（筹码：' + player.chips + '）') player.chips = player.chips - bet; chipsEl.textContent = "筹码：" + player.chips; } let firstCard = randomCard(); let secondCard = randomCard(); cards = [firstCard, secondCard]; let tableFirstCard = randomCard(); let tableSecondCard = randomCard(); tableCards = [tableFirstCard, tableSecondCard]; let message = ""; let hasBlackJack = false; let isAlive = true; sum = firstCard + secondCard; newCardButton.style.visibility = "visible"; startGameButton.textContent = "新游戏"; if (sum < 21) { message = "你想要抽一张新牌吗？"; } else if (sum === 21) { message = "你得到了21点！"; newCardButton.style.visibility = "hidden"; startGameButton.style.visibility = "visible"; player.chips = player.chips + bet * 2 hasBlackJack = true; } else { startGameButton.style.visibility = "visible"; isAlive = false; message = "运气不好！你已经离开游戏了！"; } messageEl.textContent = message; cardsEl.textContent = "牌：" + firstCard + " " + secondCard; tableCardsEl.textContent = "桌面牌：" + tableSecondCard + " " + tableSecondCard; sumEl.textContent = "总和：" + sum; console.log("21点：" + hasBlackJack); console.log("存活：" + isAlive); }
我甚至尝试交换顺序，看看是否有任何区别，但是发生的一切都是：
if (sum < 21) { message = "你想要抽一张新牌吗？"; } else if (sum === 21) { message = "你得到了21点！"; newCardButton.style.visibility = "hidden"; startGameButton.style.visibility = "visible"; player.chips = player.chips + bet * 2 hasBlackJack = true; } else { startGameButton.style.visibility = "visible"; isAlive = false; message = "运气不好！你已经离开游戏了！"; }
if语句中的所有内容都在发生，除了可见性部分。
如果需要更多上下文，请参考代码链接：https://github.com/pedrosilva410/blackjack-game
我已經在你的Github上查看了整個程式碼，問題在於你的
startGame函數只在遊戲剛開始時呼叫（這是有道理的，顯然）。在遊戲進行中它什麼都不做。你關於使「開始遊戲」按鈕可見的指示是正確的，只是把它們放錯了位置。也把它們加到你的
drawCard函數中。function drawCard() { if (hasBlackJack == false || isAlive == true) { let newCard = randomCard(); let newTableCard = randomCard(); sum = sum + newCard if (sum < 21) { message = "你想要抽一张新牌吗？"; } else if (sum === 21) { message = "你得到了21点！"; newCardButton.style.visibility = "hidden"; startGameButton.style.visibility = "visible"; hasBlackJack = true; } else { isAlive = false; message = "运气不好！你已经出局了！"; startGameButton.style.visibility = "visible"; newCardButton.style.visibility = "hidden" } messageEl.textContent = message; cardsEl.textContent = cardsEl.textContent + " " + newCard; tableCardsEl.textContent = tableCardsEl.textContent + " " + newTableCard; sumEl.textContent = "总和: " + sum; console.log("黑杰克: " + hasBlackJack); console.log("还活着: " + isAlive); } }