3 changed files with 76 additions and 88 deletions
--- a/README.md
+++ b/README.md
@ -1,2 +0,0 @@
-# jisuanqi
-
--- a/Test.java
+++ b/Test.java
@ -1,4 +0,0 @@
-public class Test {
-
-
-}
--- a/jsq.html
+++ b/jsq.html
@ -26,7 +26,7 @@
            width: 100%;
            height: 50px;
            margin-bottom: 10px;
-            padding: 0px;
+            padding: 10px;
            font-size: 24px;
            text-align: right;
            border: none;
@ -61,95 +61,89 @@
    </style>
 </head>
 <body>
-<div class="calculator">
-    <input type="text" id="display" disabled>
-    <div class="buttons">
-        <button onclick="clearDisplay()">C</button>
-        <button onclick="appendNumber('7')">7</button>
-        <button onclick="appendNumber('8')">8</button>
-        <button onclick="appendNumber('9')">9</button>
-        <button onclick="chooseOperation('/')">/</button>
-        <button onclick="appendNumber('4')">4</button>
-        <button onclick="appendNumber('5')">5</button>
-        <button onclick="appendNumber('6')">6</button>
-        <button onclick="chooseOperation('*')">*</button>
-        <button onclick="appendNumber('1')">1</button>
-        <button onclick="appendNumber('2')">2</button>
-        <button onclick="appendNumber('3')">3</button>
-        <button onclick="chooseOperation('-')">-</button>
-        <button onclick="appendNumber('0')">0</button>
-        <button onclick="appendNumber('.')">.</button>
-        <button onclick="compute()">=</button>
-        <button onclick="chooseOperation('+')">+</button>
-        <button onclick="chooseOperation('%')">%</button>
-        <button onclick="appendNumber('-')">±</button>
+    <div class="calculator">
+        <input type="text" id="display" disabled>
+        <div class="buttons">
+            <button onclick="clearDisplay()">C</button>
+            <button onclick="appendNumber('7')">7</button>
+            <button onclick="appendNumber('8')">8</button>
+            <button onclick="appendNumber('9')">9</button>
+            <button onclick="chooseOperation('/')">/</button>
+            <button onclick="appendNumber('4')">4</button>
+            <button onclick="appendNumber('5')">5</button>
+            <button onclick="appendNumber('6')">6</button>
+            <button onclick="chooseOperation('*')">*</button>
+            <button onclick="appendNumber('1')">1</button>
+            <button onclick="appendNumber('2')">2</button>
+            <button onclick="appendNumber('3')">3</button>
+            <button onclick="chooseOperation('-')">-</button>
+            <button onclick="appendNumber('0')">0</button>
+            <button onclick="appendNumber('.')">.</button>
+            <button onclick="compute()">=</button>
+            <button onclick="chooseOperation('+')">+</button>
+        </div>
    </div>
-</div>

-<script>
-    let currentOperand = '';
-    let previousOperand = '';
-    let operation = undefined;
+    <script>
+        let currentOperand = '';
+        let previousOperand = '';
+        let operation = undefined;

-    const display = document.getElementById('display');
+        const display = document.getElementById('display');

-    function appendNumber(number) {
-        if (number === '.' && currentOperand.includes('.')) return;
-        if (number === '-' && currentOperand.length > 0) return; // 防止在数字中间添加负号
-        currentOperand += number;
-        updateDisplay();
-    }
+        function appendNumber(number) {
+            if (number === '.' && currentOperand.includes('.')) return;
+            currentOperand += number;
+            updateDisplay();
+        }

-    function chooseOperation(op) {
-        if (currentOperand === '') return;
-        if (previousOperand !== '') {
-            compute();
+        function chooseOperation(op) {
+            if (currentOperand === '') return;
+            if (previousOperand !== '') {
+                compute();
+            }
+            operation = op;
+            previousOperand = currentOperand;
+            currentOperand = '';
        }
-        operation = op;
-        previousOperand = currentOperand;
-        currentOperand = '';
-    }

-    function compute() {
-        let computation;
-        const prev = parseFloat(previousOperand);
-        const current = parseFloat(currentOperand);
-        if (isNaN(prev) || isNaN(current)) return;
-        switch (operation) {
-            case '+':
-                computation = prev + current;
-                break;
-            case '-':
-                computation = prev - current;
-                break;
-            case '*':
-                computation = prev * current;
-                break;
-            case '/':
-                computation = prev / current;
-                break;
-            case '%':
-                computation = prev % current;
-                break;
-            default:
-                return;
+        function compute() {
+            let computation;
+            const prev = parseFloat(previousOperand);
+            const current = parseFloat(currentOperand);
+            if (isNaN(prev) || isNaN(current)) return;
+            switch (operation) {
+                case '+':
+                    computation = prev + current;
+                    break;
+                case '-':
+                    computation = prev - current;
+                    break;
+                case '*':
+                    computation = prev * current;
+                    break;
+                case '/':
+                    computation = prev / current;
+                    break;
+                default:
+                    return;
+            }
+            currentOperand = computation.toString();
+            operation = undefined;
+            previousOperand = '';
+            updateDisplay();
        }
-        currentOperand = computation.toString();
-        operation = undefined;
-        previousOperand = '';
-        updateDisplay();
-    }

-    function clearDisplay() {
-        currentOperand = '';
-        previousOperand = '';
-        operation = undefined;
-        updateDisplay();
-    }
+        function clearDisplay() {
+            currentOperand = '';
+            previousOperand = '';
+            operation = undefined;
+            updateDisplay();
+        }

-    function updateDisplay() {
-        display.value = currentOperand;
-    }
-</script>
+        function updateDisplay() {
+            display.value = currentOperand;
+        }
+    </script>
 </body>
 </html>