比較功能在石頭剪刀布程式中不起作用-有解無憂

我做了一個石頭剪刀布程式（下面的代碼），它記錄用戶輸入、計算機選擇，然后比較得到結果。比較部分由于某種原因不起作用，它總是記錄“這是平局”，有人可以幫忙嗎？

編碼：


  let playerSelection = choice();
  function choice(){
    let input = prompt("pick either rock,paper or scissors");
    console.log(input.toLowerCase());
  }

  let computerChoice = computerPlay();
  function computerPlay(){
    let picks =["rock","paper","scissors"];
    let pick = picks[Math.floor(Math.random(picks)*picks.length)];
    console.log (pick);
  }

  function compare(playerSelection, computerChoice){
    if(playerSelection === computerChoice){
      console.log("It's a tie!")
    }
    else if((playerSelection == "rock" && computerChoice == "scissors")||
       (playerSelection == "paper" && computerChoice == "rock")||
       (playerSelection == "scissors" && computerChoice == "paper")){
      console.log("you win! computer lose.");
    }
    else{
      console.log("computer win! you lose.");
    }
  }
  compare();
}

function game(){
  console.log(playRound());
}

game();```

uj5u.com熱心網友回復：

呼叫函式時，應將playerSelection和作為引數傳遞computerChoice給compare函式：

compare(playerSelection, computerChoice);

此外，您應該從choice()andcomputerPlay()函式回傳值，以便將值分配給播放器和計算機。電腦播放示例：

 function computerPlay(){
    let picks =["rock","paper","scissors"];
    let pick = picks[Math.floor(Math.random(picks)*picks.length)];
    return pick;
 }

這是一個完整的片段：

  let playerSelection = choice();

  function choice(){
    let input = prompt("pick either rock,paper or scissors");
    return input;
  }

  let computerChoice = computerPlay();

  function computerPlay(){
    let picks =["rock","paper","scissors"];
    let pick = picks[Math.floor(Math.random(picks)*picks.length)];
    return pick;
  }

  function compare(playerSelection, computerChoice){
    if(playerSelection === computerChoice){
      console.log("It's a tie!")
    }
    else if((playerSelection == "rock" && computerChoice == "scissors")||
       (playerSelection == "paper" && computerChoice == "rock")||
       (playerSelection == "scissors" && computerChoice == "paper")){
      console.log("you win! computer lose.");
    }
    else{
      console.log("computer win! you lose. ");
    }
  }
  compare(playerSelection, computerChoice);

轉載請註明出處，本文鏈接：https://www.uj5u.com/shujuku/471326.html

標籤：javascript

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