diff --git a/jzzh.html b/jzzh.html
new file mode 100644
index 0000000..e86469d
--- /dev/null
+++ b/jzzh.html
@@ -0,0 +1,74 @@
+<!DOCTYPE html>
+<html lang="zh">
+<head>
+<meta charset="UTF-8">
+<title>进制转换</title>
+<script>
+function toDecimal(number, base) {
+    let decimal = 0;
+    let power = 0;
+    for (let i = number.length - 1; i >= 0; i--) {
+        let digit = number[i];
+        let value = parseInt(digit, base);
+        if (isNaN(value)) {
+            alert(`无效的数字 ${digit} 对于基数 ${base}`);
+            return null;
+        }
+        decimal += value * Math.pow(base, power);
+        power++;
+    }
+    return decimal;
+}
+
+function fromDecimal(number, base) {
+    if (number === 0) {
+        return "0";
+    }
+
+    let result = "";
+    const digits = "0123456789ABCDEF";
+
+    while (number > 0) {
+        let remainder = number % base;
+        result = digits[remainder] + result;
+        number = Math.floor(number / base);
+    }
+
+    return result;
+}
+
+function convert() {
+    let sourceBase = document.getElementById('sourceBase').value;
+    let sourceNumber = document.getElementById('sourceNumber').value.toUpperCase();
+    let targetBase = document.getElementById('targetBase').value;
+
+    if (sourceBase < 2 || sourceBase > 16 || targetBase < 2 || targetBase > 16) {
+        alert("基数必须在2到16之间");
+        return;
+    }
+
+    let decimal = toDecimal(sourceNumber, sourceBase);
+    if (decimal !== null) {
+        let targetNumber = fromDecimal(decimal, targetBase);
+        document.getElementById('result').innerText = `转换后的数是: ${targetNumber}`;
+    }
+}
+</script>
+</head>
+<body>
+<h1>进制转换器</h1>
+<form onsubmit="event.preventDefault(); convert();">
+    <label for="sourceBase">原始进制（2-16）:</label>
+    <input type="number" id="sourceBase" required min="2" max="16"><br><br>
+
+    <label for="sourceNumber">原始数:</label>
+    <input type="text" id="sourceNumber" required pattern="[0-9A-Fa-f]*"><br><br>
+
+    <label for="targetBase">目标进制（2-16）:</label>
+    <input type="number" id="targetBase" required min="2" max="16"><br><br>
+
+    <button type="submit">转换</button>
+</form>
+<p id="result"></p>
+</body>
+</html>
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