chilinglee.github.io/guessingNumber.html at main · chilinglee/chilinglee.github.io · GitHub

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<!doctype html>
<html lang="en">

<head>
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">

    <!-- Bootstrap CSS -->
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.1/dist/css/bootstrap.min.css" rel="stylesheet"
        integrity="sha384-+0n0xVW2eSR5OomGNYDnhzAbDsOXxcvSN1TPprVMTNDbiYZCxYbOOl7+AMvyTG2x" crossorigin="anonymous">

    <title>Guess Number!</title>
    <style>
        body {
            background-image: ;
        }
    </style>
</head>

<body>
    <div id="main" class="mt-5">
        <p id="hint"></p>
    </div>
    <div class="playground">
        <button type="button" class="btn btn-warning my-3" id="start">遊戲開始</button>
        <button type="button" class="btn btn-danger mb-3" id="restart">Restart</button>
        <input type="text" id="number">
        <div id="keysArea" class="my-3"></div>
    </div>

    <!-- Option 2: Separate Popper and Bootstrap JS -->
    <script src="https://cdn.jsdelivr.net/npm/@popperjs/core@2.9.2/dist/umd/popper.min.js"
        integrity="sha384-IQsoLXl5PILFhosVNubq5LC7Qb9DXgDA9i+tQ8Zj3iwWAwPtgFTxbJ8NT4GN1R8p"
        crossorigin="anonymous"></script>
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.1/dist/js/bootstrap.min.js"
        integrity="sha384-Atwg2Pkwv9vp0ygtn1JAojH0nYbwNJLPhwyoVbhoPwBhjQPR5VtM2+xf0Uwh9KtT"
        crossorigin="anonymous"></script>

    <script>
        //設定背景
        let body = document.getElementsByTagName("body")[0];
        body.setAttribute("style", "background-image:url(https://img1.dowebok.com/5024.jpg);background-size: cover;")

        //製作鍵盤
        const keys_area = document.getElementById("keysArea");
        keys_area.setAttribute("style", "margin:auto; width:180px;");
        const keys_array = [1, 2, 3, 4, 5, 6, 7, 8, 9, "del", 0, "Go"];
        keys_array.forEach(function (item) {
            let button = document.createElement("button");
            button.setAttribute("class", "btn btn-dark");
            button.setAttribute("style", "width:50px; height:50px; margin:5px 5px; text-align:center; font-size:12px;")
            button.setAttribute("id", item)
            button.innerText = item;
            //關閉button disabled ture
            button.disabled = true;
            keys_area.appendChild(button);
        });
        const del = document.getElementById("del");
        del.setAttribute("style", "width:50px; height:50px; margin:5px 5px; text-align:center; font-size:12px; color:red;")
        const go = document.getElementById("Go");
        go.setAttribute("style", "width:50px; height:50px; margin:5px 5px; text-align:center; font-size:12px; color: #7fff00;");


        //排版
        const main = document.getElementById("main");
        main.setAttribute("style", "width: 400px; height: 150px; border: 1px solid grey; margin:auto; border-radius:10px; display:flex; justify-content:center; align-items: center;")
        const playground = document.getElementsByClassName("playground")[0];
        playground.setAttribute("style", "display:flex; flex-direction: column; justify-content:center;")
        const start = document.getElementById("start");
        start.setAttribute("style", "width: 100px; margin:auto;");
        const restart = document.getElementById("restart");
        restart.setAttribute("style", "width: 100px; margin:auto;");
        const number_input = document.getElementById("number");
        number_input.setAttribute("style", "width: 150px; margin:auto;");
        const hint = document.getElementsByTagName("p")[0];
        hint.setAttribute("style", "font-size:28px; font-weight:700; margin-bottom: 0;")
        hint.innerText = "請按【遊戲開始】";

        //設定start button
        let answer = -1;
        let min = 0;
        let max = 99;
        start.addEventListener('click', function () {
            answer = Math.floor(Math.random() * 100);
            keys_array.forEach(function (item) {
                let button = document.getElementById(item);
                //打開button disabled = false
                button.disabled = false;
            });
            //清空input form裏的字
            number_input.value = "";
            //設定label的提示
            hint.innerText = "0-99";
            min = 0;
            max = 99;
        })


        //設定數字按鈕
        for (let i = 0; i < 10; i++) {
            let button = document.getElementById(i);
            button.addEventListener('click', function () {
                //防呆
                if (number_input.value.length < 2) {
                    number_input.value += i;
                }
                // if (number_input.value < min || number_input.value > max) {
                //     window.alert("請輸入提示範圍内的數值")
                //     number_input.value = number_input.value.slice(0, number_input.value.length - 1);
                // }
            });
        }

        //設定del button
        del.addEventListener('click', function () {
            number_input.value = number_input.value.slice(0, number_input.value.length - 1);
        });

        //設定restart button
        restart.addEventListener('click', function () {
            //button disabled
            keys_array.forEach(function (item) {
                let button = document.getElementById(item);
                button.disabled = true;
            })
            //清空input form裏的字
            number_input.value = "";
            //設定hint
            hint.innerText = "請按【遊戲開始】"
        });
        //設定GO button

        go.addEventListener('click', function () {
            let guess = Number(number_input.value);
            console.log(guess);
            if (guess == "") {
                window.alert("請輸入數值")
            }
            else if (guess < min || guess > max) {
                window.alert("請輸入範圍内的數值")
                number_input.value = "";
            }
            else if (guess > answer) {
                max = guess;
                hint.innerText = min + "-" + max;
                number_input.value = "";
            }
            else if (guess < answer) {
                min = guess;
                hint.innerText = min + "-" + max;
                number_input.value = "";
            }
            else {
                hint.innerText = "Yes it is " + answer;
                number_input.value = "";
            }

        })
    </script>

</body>

</html>