JS 游戏 Crowns and Anchors：结果错误

Question

在 Ethan Brown 的“Learning JavaScript”一书的帮助下开发的游戏的结果难以理解。

代码如下：

//helper functions for randomizing
function rand(x,y){
  return x + Math.floor((y-x+1)*Math.random());
}

function getFace(){ return ['crown','heart','spade','club','diamond','anchor'][rand(0,5)]; }

//the game
function crownsAndAnchors(){
  console.log('Let\'s play Crowns and Anchors!');
  let rounds = 0;
  let funds = 50;
  while( funds > 1 && funds < 100 ){
    rounds ++;
    console.log(`Round: ${rounds}`);
    let totalBet = 7;
    let bets = { crown: 0, heart: 0, spade:0, club:0, diamond:0, anchor:0 };
    if (totalBet == 7){
      totalBet = funds;
      console.log('You pulled out 7p, your lucky number! Bet all on heart');
      bets.heart = totalBet;
    }else{
       //distribute totalBet randomly
    }
    funds = funds - totalBet;
    console.log('\tBets: ' + Object.keys(bets).map(face => `${face} ${bets[face]}p`).join(' || ') + `  (total: ${totalBet} pence)`);
    const hand = [];
     // roll the dice
    console.log("_______________rolling the dice ____________")
    for (let i = 0; i < 3; i++) {
      hand.push(getFace());
    }
    console.log(`\tHand: ${hand.join(', ')}`);
    //check for winnings
    let wins = 0;
    for (let i = 0; i < hand.length; i++) {
      let face = hand[i];
      if (bets[face] > 0) wins = wins + bets[face];
    }
    funds = funds + wins;
    console.log(`\tWinnings: ${wins}`);
  }
  console.log(`\nEnding Funds: ${funds}`);
}

crownsAndAnchors();

我将变量 totalBet 硬编码为 7，以便轻松监控最终结果。例如，如果三分之二的骰子结果是heart，那么期末资金应该是150，对吗？

但是，当我运行代码（节点v7.6.0）时，我返回的是：

Let's play Crowns and Anchors!

Round: 1
You pulled out 7p, your lucky number! Bet all on heart
        Bets: crown: 0p || heart: 50p || spade: 0p || club: 0p || diamond: 0p || anchor: 0p  (total: 50 pence)
_______________rolling the dice ____________
        Hand: heart, heart, club
        Winnings: 100

Ending funds: 100

我知道我以某种方式错误地更新了funds，我只是不知道为什么。

提前谢谢你！！！

Answer 1

线 资金=资金-totalBet； 正在将资金设置为 0，然后您将获得 50 的两场胜利，然后将其添加为 100。

如果您消除资金 = 资金 - totalBet 的那条线，那么您将得到预期的 150。

或者将那条线移到掷骰子之后，只有在你没有赢得任何东西的情况下才执行它。