Question

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<html> 
<head>
<title>Game</title>
<script type="text/javascript" src="game.js"></script>

</head>
<body>
    <h1>GameSite</h1>
    <p> This program will generate a random number. Please input your guess in the box!</p>
    <button onclick="guessGame()">Press me to play a quick game!</button>

<script>
    function guessGame(){
        number = Math.floor(Math.random()*11);
        document.write(number);
        var guess = prompt("Guess a number: ");
            do {
                guess = prompt("Keep guessing!");
                if (number < guess) {
                    prompt("You've guessed too high!");
                } else if (number > guess) {
                    prompt("You've guessed too low!");
                } else document.write("Good Job!");
            } while (guess != number);
    }
    </script>
    </body> 
</html>

我遇到循环问题。它循环很好，但是如果我在if语句后移动了guess语句，那么每次都会返回到该语句。如果我把它放在if语句之外，那么它似乎实际上不允许我猜出一个有效的数字。很难解释：\

Answer 1

我建议只使用一个提示并将其分配给变量。

function guessGame() {
    var number = Math.random() * 11 | 0,
        guess,
        text = 'Guess a number:';
    do {
        guess = prompt(text);
        if (number < guess) {
            text = "You've guessed too high!";
        } else if (number > guess) {
            text = "You've guessed too low!";
        }
    } while (guess != number);
    document.write("Good Job!");
}
guessGame();

Answer 2

试试这个：

System.exit

while循环将一直运行，直到猜到正确的数字，然后它将终止。

编辑：对不起，输入错误的错误

Answer 3

当您不需要用户的回复时，我建议您使用alert

function guessGame(){
    number = Math.floor(Math.random()*11);
    var guess;
        do {
            guess = prompt("Guess a number: "); // you should handle string input here
            if (number < guess) {
                alert("You've guessed too high!");
                alert("Keep guessing!");
            } else if (number > guess) {
                alert("You've guessed too low!");
                alert("Keep guessing!");
            } 
        } while (guess != number);
        alert("Good Job!");
}

Answer 4

相信我，我是一名程序员。

strtrim

做javascript - 循环猜测游戏

4 个答案: