甲班第二次計算機
Canvas 計算機 0 1 2 3 + 4 5 6 - 7 8 9 * 0 C = / * { margin: 0; padding: 0; box-sizing: border-box; } body { font-family: Arial, sans-serif; display: flex; justify-content: center; align-items: center; height: 100vh; background-color: #f0f0f0; } .calculator { display: flex; flex-direction: column; align-items: center; background-color: #fff; border-radius: 10px; padding: 20px; box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1); } #calculatorCanvas { border: 2px solid #333; border-radius: 10px; margin-bottom: 20px; } .display { font-size: 30px; margin-bottom: 20px; padding: 10px; background-color: #eaeaea...