Python 实现
"""空调耗电量计算器"""

from typing import Optional, Tuple


class Calculator:
    COOLING_CAPACITY_PER_HP = 2500  # 1 匹空调的制冷量 (W)
    TYPICAL_EER = 3.0  # 典型能效比（制冷量/输入功率），用于估算
    POWER_FACTOR = 0.85  # 空调的功率因数，一般为 [0.80, 0.98]
    VOLTAGE = 220  # 中国生活用电电压大小 (V)

    def __init__(self, electricity_price: float, *,
                 input_power: Optional[float] = None,
                 cooling_c...