Question

我正在创建一个Scissors Paper摇滚游戏，函数和if语句。我现在遇到一个仅返回DRAW情况的错误。如果有人发现该错误，将不胜感激。

我的代码的链接在这里： https://github.com/BladeMountain/SissorPaperRock/blob/master/SPR_script.html

function computerPlay() {
  let choice = ['rock', 'paper', 'scissor'];
  let randomChoice = [Math.floor(Math.random() * choice.length)];
  return randomChoice;
}

function playGame(playerSelection, computerSelection) {
  if (playerSelection == "scissor" && computerSelection == "paper") {
    return "You Won";
  } else if (playerSelection == "paper" && computerSelection == "rock") {
    return "You Won";
  } else if (playerSelection == "rock" && computerSelection == "scissor") {
    return "You Won";
  } else if (playerSelection == "scissor" && computerSelection == "rock") {
    return "You Lost";
  } else if (playerSelection == "paper" && computerSelection == "scissor") {
    return "You Lost";
  } else if (playerSelection == "rock" && computerSelection == "paper") {
    return "You Lost";
  } else if (playerSelection == "rock" && computerSelection == "rock") {
    return "Draw";
  } else if (playerSelection == "scissor" && computerSelection == "scissor") {
    return "Draw";
  } else if (playerSelection == "paper" && computerSelection == "paper") {
    return "Draw";
  } else {
    return 'Invalid response, this is case insensitive. Please input either scissor, paper or rock';
  }
}

function game() {
  let roundOne = playGame(playerSelection, computerSelection);
  let roundTwo = playGame(playerSelection, computerSelection);
  let roundThree = playGame(playerSelection, computerSelection);
  let roundFour = playGame(playerSelection, computerSelection);
  let roundFive = playGame(playerSelection, computerSelection);

  console.log('Round 1 = ' + roundOne);
  console.log('Round 2 = ' + roundTwo);
  console.log('Round 3 = ' + roundThree);
  console.log('Round 4 = ' + roundFour);
  console.log('Round 5 = ' + roundFive);

}

let playerSelection = prompt("Please select one", "scissor/paper/rock");
let computerSelection = computerPlay();
console.log(playGame(playerSelection, computerSelection));

// this is only still executing my else statement. Anything that I need to change?

另外，我是StackOverflow和编码的新手，希望这不是一个愚蠢的问题。

Answer 1

请检查下面的代码。...我对函数computerPlay（）进行了更改

不是返回随机数，而是返回数组值...只是返回函数computerPlay（）的一个更改

// this is only still executing my else statement. Anything that I need to change?

function computerPlay() {
let choice = ['rock', 'paper', 'scissor'];
let randomChoice = [Math.floor(Math.random()*choice.length)];
return choice[randomChoice];
}

function playGame(playerSelection, computerSelection) {
  if (playerSelection == "scissor" && computerSelection == "paper"){
      return "You Won";
  } else if (playerSelection == "paper" && computerSelection == "rock"){
      return "You Won";
  } else if (playerSelection == "rock" && computerSelection == "scissor"){
      return "You Won";
  } else if (playerSelection == "scissor" && computerSelection == "rock"){
      return "You Lost";
  } else if (playerSelection == "paper" && computerSelection == "scissor"){
      return "You Lost";
  } else if (playerSelection == "rock" && computerSelection == "paper"){
      return "You Lost";
  } else if (playerSelection == "rock" && computerSelection == "rock"){
      return "Draw";
  } else if (playerSelection == "scissor" && computerSelection == "scissor"){
      return "Draw";
  } else if (playerSelection == "paper" && computerSelection == "paper"){
      return "Draw";
  } else {
    return'Invalid response, this is case insensitive. Please input either scissor, paper or rock';
  }
}

function game() {
  let roundOne = playGame(playerSelection, computerSelection);
  let roundTwo = playGame(playerSelection, computerSelection);
  let roundThree = playGame(playerSelection, computerSelection);
  let roundFour = playGame(playerSelection, computerSelection);
  let roundFive = playGame(playerSelection, computerSelection);
  
  console.log('Round 1 = ' + roundOne);
  console.log('Round 2 = ' + roundTwo);
  console.log('Round 3 = ' + roundThree);
  console.log('Round 4 = ' + roundFour);
  console.log('Round 5 = ' + roundFive);
 
}

let playerSelection = prompt("Please select one", "scissor/paper/rock");
let computerSelection = computerPlay();
console.log(playGame(playerSelection, computerSelection));

// this is only still executing my else statement. Anything that I need to change?

<!DOC HTMl> 
<html>


</html>

无法正确执行else if语句

1 个答案: