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@ -17,6 +17,9 @@
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display: block;
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margin-bottom: 10px;
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}
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#result {
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font-weight: bold;
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}
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</style>
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</head>
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<body>
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@ -25,7 +28,7 @@
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<input type="number" id="fromBase" min="2" max="16" required>
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<label for="number">输入数字:</label>
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<input type="text" id="number" required>
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<input type="text" id="number" placeholder="例如：1010" required>
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<label for="toBase">转换为进制 (2-16):</label>
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<input type="number" id="toBase" min="2" max="16" required>
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@ -36,20 +39,29 @@
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<div id="result"></div>
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<script>
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document.getElementById('convertButton').addEventListener('click', function() {
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document.getElementById('convertButton').addEventListener('click', () => {
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const fromBase = parseInt(document.getElementById('fromBase').value);
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const number = document.getElementById('number').value;
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const number = document.getElementById('number').value.trim();
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const toBase = parseInt(document.getElementById('toBase').value);
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// 先将输入的任意进制数转换为十进制
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const decimalValue = parseInt(number, fromBase);
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// 验证输入的数字是否合法
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if (!/^[0-9A-Fa-f]+$/.test(number) || !isValidForBase(number, fromBase)) {
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document.getElementById('result').textContent = '输入的数字不符合指定的进制规则！';
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return;
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}
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// 将十进制数转换为目标进制
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// 转换为十进制
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const decimalValue = parseInt(number, fromBase);
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const convertedValue = decimalValue.toString(toBase).toUpperCase();
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// 显示结果
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document.getElementById('result').textContent = convertedValue;
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});
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function isValidForBase(numStr, base) {
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const validChars = '0123456789ABCDEF'.slice(0, base);
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return [...numStr].every(char => validChars.includes(char.toUpperCase()));
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}
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</script>
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</body>
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</html>
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</html>
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