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Update index.html
Browse files- index.html +79 -18
index.html
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<!
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<html>
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</html>
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Конвертер размеров колец</title>
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<style>
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body { font-family: Arial, sans-serif; }
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.container { max-width: 600px; margin: auto; padding: 20px; }
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input, select { width: 100%; margin: 10px 0; padding: 10px; }
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.result { margin-top: 20px; }
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</style>
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</head>
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<body>
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<div class="container">
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<h1>Конвертер размеров колец</h1>
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<input type="number" id="value" placeholder="Введите значение" />
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<select id="unitFrom">
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<option value="in_diameter">Диаметр в дюймах (in)</option>
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<option value="mm_diameter">Диаметр в миллиметрах (mm)</option>
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<option value="in_circumference">Длина окружности в дюймах (in)</option>
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<option value="mm_circumference">Длина окружности в миллиметрах (mm)</option>
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</select>
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<button onclick="convert()">Перевести</button>
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<div class="result" id="result"></div>
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</div>
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<script>
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function convert() {
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const value = parseFloat(document.getElementById('value').value);
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const unitFrom = document.getElementById('unitFrom').value;
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const resultDiv = document.getElementById('result');
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if (isNaN(value)) {
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resultDiv.innerHTML = "Пожалуйста, введите корректное значение.";
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return;
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}
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// Переменные для хранения результатов
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let inDiameter, mmDiameter, inCircumference, mmCircumference;
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// Конвертация входного значения
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if (unitFrom === 'in_diameter') {
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inDiameter = value;
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mmDiameter = value * 25.4; // 1 дюйм = 25.4 мм
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inCircumference = value * Math.PI; // C = π * d
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mmCircumference = mmDiameter * Math.PI; // C = π * d
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} else if (unitFrom === 'mm_diameter') {
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mmDiameter = value;
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inDiameter = value / 25.4; // 1 мм = 0.03937 дюйма
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inCircumference = inDiameter * Math.PI;
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mmCircumference = value * Math.PI;
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} else if (unitFrom === 'in_circumference') {
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inCircumference = value;
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mmCircumference = value * 25.4; // 1 дюйм = 25.4 мм
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inDiameter = value / Math.PI; // d = C / π
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mmDiameter = inDiameter * 25.4;
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} else if (unitFrom === 'mm_circumference') {
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mmCircumference = value;
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inCircumference = value / 25.4; // 1 мм = 0.03937 дюйма
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mmDiameter = value / Math.PI; // d = C / π
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inDiameter = mmDiameter / 25.4;
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}
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// Формирование вывода
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resultDiv.innerHTML = `
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<strong>Результаты:</strong><br>
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Диаметр:<br>
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${inDiameter.toFixed(4)} дюймов (in)<br>
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${mmDiameter.toFixed(4)} миллиметров (mm)<br>
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<br>
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Длина окружности:<br>
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${inCircumference.toFixed(4)} дюймов (in)<br>
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${mmCircumference.toFixed(4)} миллиметров (mm)
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`;
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}
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</script>
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</body>
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</html>
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