Question

我正在用JavaScript制作一个Rock，Paper，Scissors游戏。我的老师要我用for循环来重复转弯。除此之外，它需要在for循环中进行10场比赛，我需要在每轮比赛后打印出比分，然后一旦比赛结束，我必须打印总分。

请帮助我不知道该怎么做。我一直在尝试过去4个小时，但我找不到任何特定问题的答案。

for(i = 0; i < 3; i++) {

// User choice
var userChoice = prompt("Do you choose rock, paper or scissors?");
if (! userChoice) {
    // User choice was undefined
    document.write("<p>Player 1, you cheated! Refresh this screen and fight like a man.</p>");
} else {
    // Display user choice
    document.write("<p>Player 1:" + " " + userChoice + "</p>");
}
// Computer choice
var computerChoice = Math.random();
if (computerChoice < 0.34) {
    computerChoice = "rock";
} else if(computerChoice <= 0.67) {
    computerChoice = "paper";
} else {
    computerChoice = "scissors";
}

// Display computer choice
document.write("<p>Computer:" + " " + computerChoice + "</p>");
// Compare user choice vs computer choice
var compare = function(choice1,choice2) {
    if (choice1 === choice2) {
        return "It's a tie!";
    }
    if (choice1 === "rock") {
        if (choice2 === "scissors") {
            // rock wins
            return "You win!";
        } else {
            // paper wins
            return "You lose! Try again.";
        }
    }
    if (choice1 === "paper") {
        if (choice2 === "rock") {
            // paper wins
            return "You win!";
        } else {
            // scissors wins
            return "You lose! Try again.";
        }
    }
    if (choice1 === "scissors") {
        if (choice2 === "rock") {
            // rock wins
            return "You lose! Try again.";
        } else {
            // scissors wins
            return "You win!";
        }
    }
};
// Run the compare function
var results = compare(userChoice,computerChoice);
// Display results
document.write("<br><hr><b>Results: </b>" + results);

}

Answer 1

您在评论的粘贴框中发出的是您在尝试返回值后添加得分。返回后的代码无法访问。您需要先添加该值。此外，你可以赢得+ = 1作为一个小速记。：）

var win = 0;
var loss = 0;
var tie = 0;
for(i = 0; i < 3; i++) {

// User choice
var userChoice = prompt("Do you choose rock, paper or scissors?");
if (! userChoice) {
    // User choice was undefined
    document.write("<p>Player 1, you cheated! Refresh this screen and fight like a man.</p>");
} else {
    // Display user choice
    document.write("<p>Player 1:" + " " + userChoice + "</p>");
}
// Computer choice
var computerChoice = Math.random();
if (computerChoice < 0.34) {
    computerChoice = "rock";
} else if(computerChoice <= 0.67) {
    computerChoice = "paper";
} else {
    computerChoice = "scissors";
}

// Display computer choice
document.write("<p>Computer:" + " " + computerChoice + "</p>");
// Compare user choice vs computer choice
var compare = function(choice1,choice2) {
    if (choice1 === choice2) {
        tie+=1;
        return "It's a tie!";
    }
    if (choice1 === "rock") {
        if (choice2 === "scissors") {
            // rock wins
            win+=1;
            return "You win!";
        } else {
            // paper wins
            loss+=1;
            return "You lose! Try again.";
        }
    }
    if (choice1 === "paper") {
        if (choice2 === "rock") {
            // paper wins
            win+=1;
            return "You win!";
        } else {
            // scissors wins
            loss+=1;
            return "You lose! Try again.";
        }
    }
    if (choice1 === "scissors") {
        if (choice2 === "rock") {
            // rock wins
            loss+=1;
            return "You lose! Try again.";
        } else {
            // scissors wins
            win+=1;
            return "You win!";
        }
    }
};
// Run the compare function
var results = compare(userChoice,computerChoice);
// Display results
document.write("<br><hr><b>Results: </b>" + results);

}
document.write("<br/>Final Results: W-"+win+"; L-"+loss+"; T-"+tie+";");

For Loop Rock Paper Scissors游戏[JavaScript]

1 个答案: