diff --git a/calc.html b/calc.html
new file mode 100644
index 0000000..1429908
--- /dev/null
+++ b/calc.html
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+<!DOCTYPE html>
+<html lang="zh">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>简易计算器</title>
+    <style>
+        body {
+            font-family: Arial, sans-serif;
+            display: flex;
+            justify-content: center;
+            align-items: center;
+            height: 100vh;
+            background-color: #f4f4f4;
+        }
+        .calculator {
+            background: white;
+            padding: 20px;
+            border-radius: 10px;
+            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
+            width: 300px;
+        }
+        input[type="text"] {
+            width: 100%;
+            padding: 10px;
+            margin-bottom: 10px;
+            border: 1px solid #100909;
+            border-radius: 5px;
+            text-align: right;
+            font-size: 1.5em;
+        }
+        button {
+            width: 60px;
+            height: 60px;
+            margin: 5px;
+            border: none;
+            border-radius: 5px;
+            cursor: pointer;
+            background-color: #eaedf1;
+            color: rgb(145, 10, 10);
+            font-size: 1.5em;
+        }
+         
+    </style>
+</head>
+<body>
+
+<div class="calculator">
+    <input type="text" id="display" placeholder="0" disabled>
+    <div>
+        <button onclick="appendToDisplay('7')">7</button>
+        <button onclick="appendToDisplay('8')">8</button>
+        <button onclick="appendToDisplay('9')">9</button>
+        <button class="operator" onclick="appendToDisplay('/')">÷</button>
+    </div>
+    <div>
+        <button onclick="appendToDisplay('4')">4</button>
+        <button onclick="appendToDisplay('5')">5</button>
+        <button onclick="appendToDisplay('6')">6</button>
+        <button class="operator" onclick="appendToDisplay('*')">×</button>
+    </div>
+    <div>
+        <button onclick="appendToDisplay('1')">1</button>
+        <button onclick="appendToDisplay('2')">2</button>
+        <button onclick="appendToDisplay('3')">3</button>
+        <button class="operator" onclick="appendToDisplay('-')">−</button>
+    </div>
+    <div>
+        <button onclick="appendToDisplay('0')">0</button>
+        <button class="clear" onclick="clearDisplay()">C</button>
+        <button class="operator" onclick="calculateResult()">=</button>
+        <button class="operator" onclick="appendToDisplay('+')">+</button>
+    </div>
+    <div>
+        <button class="operator" onclick="appendToDisplay('%')">%</button>
+    </div>
+</div>
+
+<script>
+    function appendToDisplay(value) {
+        const display = document.getElementById('display');
+        if (display.value === "0") {
+            display.value = value; // Replace zero if it's the first number
+        } else {
+            display.value += value; // Append the value
+        }
+    }
+
+    function clearDisplay() {
+        document.getElementById('display').value = '0';
+    }
+
+    function calculateResult() {
+        const display = document.getElementById('display');
+        try {
+            // Replace symbols for eval
+            let expression = display.value.replace(/×/, '*').replace(/÷/, '/');
+            display.value = eval(expression);
+        } catch (error) {
+            display.value = "错误";
+        }
+    }
+</script>
+
+</body>
+</html>
