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@ -26,7 +26,7 @@
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width: 100%;
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width: 100%;
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height: 50px;
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height: 50px;
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margin-bottom: 10px;
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margin-bottom: 10px;
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padding: 10px;
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padding: 0px;
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font-size: 24px;
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font-size: 24px;
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text-align: right;
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text-align: right;
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border: none;
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border: none;
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@ -61,7 +61,7 @@
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</style>
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</style>
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</head>
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</head>
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<body>
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<body>
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<div class="calculator">
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<div class="calculator">
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<input type="text" id="display" disabled>
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<input type="text" id="display" disabled>
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<div class="buttons">
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<div class="buttons">
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<button onclick="clearDisplay()">C</button>
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<button onclick="clearDisplay()">C</button>
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@ -81,10 +81,12 @@
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<button onclick="appendNumber('.')">.</button>
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<button onclick="appendNumber('.')">.</button>
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<button onclick="compute()">=</button>
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<button onclick="compute()">=</button>
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<button onclick="chooseOperation('+')">+</button>
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<button onclick="chooseOperation('+')">+</button>
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<button onclick="chooseOperation('%')">%</button>
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<button onclick="appendNumber('-')">±</button>
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</div>
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</div>
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</div>
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</div>
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<script>
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<script>
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let currentOperand = '';
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let currentOperand = '';
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let previousOperand = '';
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let previousOperand = '';
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let operation = undefined;
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let operation = undefined;
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@ -93,6 +95,7 @@
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function appendNumber(number) {
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function appendNumber(number) {
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if (number === '.' && currentOperand.includes('.')) return;
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if (number === '.' && currentOperand.includes('.')) return;
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if (number === '-' && currentOperand.length > 0) return; // 防止在数字中间添加负号
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currentOperand += number;
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currentOperand += number;
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updateDisplay();
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updateDisplay();
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}
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}
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@ -125,6 +128,9 @@
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case '/':
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case '/':
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computation = prev / current;
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computation = prev / current;
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break;
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break;
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case '%':
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computation = prev % current;
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break;
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default:
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default:
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return;
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return;
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}
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}
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@ -144,6 +150,6 @@
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function updateDisplay() {
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function updateDisplay() {
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display.value = currentOperand;
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display.value = currentOperand;
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}
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}
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</script>
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</script>
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</body>
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</body>
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</html>
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</html>
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