Question

我希望用JavaScript制作简单的二十一点游戏。我开始打印{ rank: '7', suit: '♥' }（以JSON格式），但我希望它将7♥打印成字符串。

任何想法如何让它工作？我也希望让游戏工作，这样我就可以积极地玩它并且它会响应。谁能给我一些关于如何做到这一点的建议呢？

function Card (rank, suit) {
    this.rank = rank;
    this.suit = suit;
}

function Deck () {
    this.deck = new Array();
    this.makeDeck = makeDeck;
    this.shuffle = shuffle;
    this.deal = deal;
}

function makeDeck() {
    var ranks = new Array("A","2", "3", "4", "5", "6", "7", "8", "9", "10"),
        suits = new Array("♥", "♦", "♣", "♠"),
        deck = new Array(52);

    var i, j;

    for (i = 0; i < 4; i += 1) {
        for (j = 0; j < 13; k += 1) {
            this.deck[i * ranks.length + j] = new Card(ranks[j], suits[i]);
        }
    }
}

function shuffle() {
    var i, j, temp, n = 10;

    for (i = 0; i < n; i += 1) {
        for (j = 0; j < this.deck.length; j += 1) {
            k = Math.floor(Math.random() * this.deck.length);
            temp = this.deck[j];
            this.deck[j] = this.deck[k];
            this.deck[k] = temp;
        }
    }
}

function deal() {
    if (this.deck.length > 0) {
        return this.deck.shift();
    } else {
        return null;
    }

    var deck = new Deck();
    deck.makeDeck();
    deck.shuffle();

    var i, j;

    for (i = 0; i < 2; i += 1) {
        for (j = 0; j < 4; j += 1) {
            var Card = deck.deal();
        }
    }
}

Answer 1

你需要解析JSON {rank：＆＃39; 7＆＃39;，suit：＆＃39;♥＆＃39;获得所需的输出7♥ 就这样写 var jsonOutput = { rank: '7', suit: '♥' } var obj = JSON.parse(jsonOutput)

现在打印obj.rank+ obj.suit，答案是7♥。

简单的二十一点javascript代码

1 个答案: