babelman97.github.io/random.html at main · babelman97/babelman97.github.io · GitHub

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<!DOCTYPE html>
<html lang="zh-TW">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>隨機數產生器</title>
    <style>
        body {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 100vh;
            background-color: #f0f0f0;
            font-family: Arial, sans-serif;
        }
        .button {
            padding: 20px 40px;
            font-size: 24px;
            margin-top: 10px;
            cursor: pointer;
            border: none;
            background-color: #4CAF50;
            color: white;
            border-radius: 10px;
        }
        .number {
            font-size: 36px;
            color: #333;
            margin-top: 10px;
        }
        .input-field {
            margin: 10px 0;
            font-size: 18px;
            padding: 10px;
            width: 80px;
            text-align: center;
            border: 1px solid #ccc;
            border-radius: 5px;
        }
    </style>
</head>
<body>
    <div>最小數字　<input type="number" class="input-field" id="minValue" placeholder="000"></div>
    <div>最大數字　<input type="number" class="input-field" id="maxValue" placeholder="999"></div>
    <div>隨機個數　<input type="number" class="input-field" id="count" placeholder="1"></div>
    <button class="button" onclick="generateRandomNumbers()">產生隨機數</button>
    <div class="number" id="randomNumbers"></div>

    <script>
        function generateRandomNumbers() {
            let minValue = parseInt(document.getElementById('minValue').value);
            let maxValue = parseInt(document.getElementById('maxValue').value);
            let count = parseInt(document.getElementById('count').value);
            let randomNumbers = new Set();

            if (isNaN(minValue) || isNaN(maxValue) || isNaN(count) || minValue >= maxValue || count <= 0 || count > (maxValue - minValue + 1)) {
                document.getElementById('randomNumbers').innerText = '請確保輸入正確的數值範圍和數量';
                return;
            }

            while (randomNumbers.size < count) {
                let randomNumber = Math.floor(Math.random() * (maxValue - minValue + 1)) + minValue;
                randomNumbers.add(randomNumber);
            }

            document.getElementById('randomNumbers').innerText = Array.from(randomNumbers).join(', ');
        }
    </script>
</body>
</html>