观赏鱼养护

复制import math

# 根据鱼缸水量和当前pH计算缓冲液添加量
# 假设使用磷酸二氢钠(NaH2PO4)降低pH

def calc_ph_adjustment(volume_liters, current_ph, target_ph):
    """
    volume_liters: 鱼缸实际水量(升)
    current_ph: 当前pH值
    target_ph: 目标pH值
    返回: 需要添加的1M NaH2PO4溶液毫升数
    """
    if current_ph == target_ph:
        return 0.0
    
    # 简化模型：每降低0.1pH需要约0.1ml/L的1M缓冲液
    # 实际需根据水体缓冲能力调整
    delta = abs(current_ph - target_ph)
    ml_per_liter = delta * 1.0  # 经验系数
    total_ml = volume_liters * ml_per_liter
    
    return round(total_ml, 1)

# 示例：100L鱼缸从8.2降至7.0
result = calc_ph_adjustment(100, 8.2, 7.0)
print(f"需添加1M NaH2PO4溶液: {result}ml")  # 需添加1M NaH2PO4溶液: 120.0ml

复制package main

import (
	"fmt"
	"math"
)

// 根据鱼缸水量和温度计算加热器功率需求
// 假设室温比目标水温低10°C
func calcHeaterPower(volumeLiters float64, targetTempC float64, roomTempC float64) float64 {
	tempDiff := targetTempC - roomTempC
	if tempDiff <= 0 {
		return 0
	}
	
	// 经验公式：每升水每升高1°C需要约1.2W功率
	// 考虑散热损失，安全系数1.5
	basePower := volumeLiters * tempDiff * 1.2
	recommendedPower := basePower * 1.5
	
	return math.Ceil(recommendedPower)
}

func main() {
	// 示例：200L鱼缸，目标26°C，室温18°C
	power := calcHeaterPower(200, 26, 18)
	fmt.Printf("推荐加热器功率: %.0fW\n", power) // 推荐加热器功率: 2880W
}

复制// 根据鱼只数量和体型计算每日喂食量
// 采用通用经验：鱼体长每厘米每日喂食约0.1g

function calcDailyFeed(fishList) {
  /**
   * fishList: [{species: string, lengthCm: number, count: number}]
   * 返回: 每日总喂食量(克)
   */
  if (!Array.isArray(fishList) || fishList.length === 0) {
    return 0;
  }

  const totalGrams = fishList.reduce((sum, fish) => {
    const { lengthCm, count } = fish;
    if (lengthCm <= 0 || count <= 0) return sum;
    
    // 小型鱼(≤5cm)系数0.08，中型鱼(5-15cm)系数0.1，大型鱼(>15cm)系数0.12
    let coefficient = 0.1;
    if (lengthCm <= 5) coefficient = 0.08;
    else if (lengthCm > 15) coefficient = 0.12;
    
    return sum + (lengthCm * count * coefficient);
  }, 0);

  return Math.round(totalGrams * 10) / 10;
}

// 示例：10条3cm灯鱼 + 2条10cm神仙鱼
const fish = [
  { species: '灯鱼', lengthCm: 3, count: 10 },
  { species: '神仙鱼', lengthCm: 10, count: 2 }
];
console.log(`每日喂食量: ${calcDailyFeed(fish)}g`); // 每日喂食量: 4.4g