JavaScript提供错误的输出
[英]JavaScript giving wrong output
问题描述
我正在创建游戏（纸/剪刀/石头），在最后一节中，我想比较userChoice与computerChoice，但是由于某些原因，我得到了错误的输出：当我按下按钮时，例如“ Stone”，计算机选择“ Scissors” '我得到以下输出：'You选择石头。 电脑选择剪刀你输了！ 再试一次。' 但这是错误的！ 应该在另一边。 当“这是一条领带！”时，我也没有得到回报。 你能帮忙吗？
//user choice var output = document.getElementById("output"); var result = document.getElementById("result"); var count = 3; var countUser = 0; var countComputer = 0; var paper = document.querySelector("#paper header"); paper.addEventListener("click", function() { paper.classList.toggle("header-special"); userChoice = "paper"; output.innerHTML = "You Chose Paper"; compareWithComputer("paper"); }); var scissors = document.querySelector("#scissors header"); scissors.addEventListener("click", function() { scissors.classList.toggle("header-special"); userChoice = "scissors"; output.innerHTML = "You Chose Scissors"; compareWithComputer("scissors"); }); var stone = document.querySelector("#stone header"); stone.addEventListener("click", function() { stone.classList.toggle("header-special"); userChoice = "stone"; output.innerHTML = "You Chose Stone"; compareWithComputer("stone"); }); // Computer choice function compareWithComputer(userChoice) { var computerChoice = Math.floor(Math.random() * 3 + 1); if (computerChoice == 1) { computerChoice = "Stone"; } else if (computerChoice == 2) { computerChoice = "Paper"; } else { computerChoice = "Scissors"; } var results = compare(userChoice, computerChoice); output.innerHTML += ". Computer Chose " + computerChoice + results; result.innerHTML = "user " + countUser + "computer" + countComputer; } // Compare userChoice and computerChoice var compare = function(choice1, choice2) { if (choice1 === choice2) { return "It's a tie!"; } if (choice1 === "stone") { if (choice2 === "scissors") { // stone wins countUser++; return "You win!"; } else { // paper wins countComputer++; return "You lose! Try again."; } } if (choice1 === "paper") { if (choice2 === "stone") { // paper wins countUser++; return "You win!"; } else { // scissors wins countComputer++; return "You lose! Try again."; } } if (choice1 === "scissors") { if (choice2 === "stone") { // stone wins countComputer++; return "You lose! Try again."; } else { // scissors wins countUser++; return "You win!"; } } };
<!DOCTYPE html> <div class="start" <h1>Click the button, start the game!</h1> </div> <div class="game" id="paper"> <header>Paper</header> </div> <div class="game" id="scissors"> <header>Scissors</header> </div> <div class="game" id="stone"> <header>Stone</header> </div> <div id="output"></div> <div id="result" </div>
1 个解决方案
解决方案1
1 已采纳 2019-04-17 15:08:03
在compareWithComputer函数中，您返回以大写字母开头的字符串。 那些不等于它们的小写字母（ 'Stone' !== 'stone' ）。
此代码有效：
//user choice var output =document.getElementById("output"); var result =document.getElementById("result"); var count=3; var countUser=0; var countComputer=0; var paper = document.querySelector("#paper header"); paper.addEventListener("click", function() { paper.classList.toggle("header-special"); userChoice = "paper"; output.innerHTML = "You Chose Paper"; compareWithComputer("paper"); }); var scissors = document.querySelector("#scissors header"); scissors.addEventListener("click", function() { scissors.classList.toggle("header-special"); userChoice = "scissors"; output.innerHTML = "You Chose Scissors"; compareWithComputer("scissors"); }); var stone = document.querySelector("#stone header"); stone.addEventListener("click", function() { stone.classList.toggle("header-special"); userChoice = "stone"; output.innerHTML = "You Chose Stone"; compareWithComputer("stone"); }); // Computer choice function compareWithComputer(userChoice) { var computerChoice = Math.floor(Math.random() * 3 + 1); if (computerChoice == 1) { computerChoice = "stone"; } else if (computerChoice == 2) { computerChoice = "paper"; } else { computerChoice = "scissors"; } var results = compare(userChoice, computerChoice); output.innerHTML += ". Computer Chose " + computerChoice + results; result.innerHTML="user "+countUser+"computer"+countComputer; } // Compare userChoice and computerChoice var compare = function(choice1, choice2) { if (choice1 === choice2) { return "It's a tie!"; } if (choice1 === "stone") { if (choice2 === "scissors") { // stone wins countUser++; return "You win!"; } else { // paper wins countComputer++; return "You lose! Try again."; } } if (choice1 === "paper") { if (choice2 === "stone") { // paper wins countUser++; return "You win!"; } else { // scissors wins countComputer++; return "You lose! Try again."; } } if (choice1 === "scissors") { if (choice2 === "stone") { // stone wins countComputer++; return "You lose! Try again."; } else { // scissors wins countUser++; return "You win!"; } } };
<!DOCTYPE html> <div class ="start" <h1>Click the button, start the game!</h1> </div> <div class="game" id="paper"> <header>Paper</header> </div> <div class="game" id="scissors"> <header>Scissors</header> </div> <div class="game" id="stone"> <header>Stone</header> </div> <div id="output"></div> <div id="result"</div>
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