儿童身高预测

复制import math

# 基于父母身高中值法预测儿童成年身高（CMH 法简化版）
def predict_adult_height(father_cm: float, mother_cm: float, sex: str) -> float:
    """
    输入：父亲身高(cm)、母亲身高(cm)、性别('male'/'female')
    输出：预测成年身高(cm)
    算法：父母平均身高 ± 6.5cm 性别调整
    """
    mid_parent = (father_cm + mother_cm) / 2
    if sex == 'male':
        return round(mid_parent + 6.5, 1)
    elif sex == 'female':
        return round(mid_parent - 6.5, 1)
    else:
        raise ValueError("性别必须为 'male' 或 'female'")

# 示例
print(predict_adult_height(175, 160, 'male'))   # 174.0
print(predict_adult_height(175, 160, 'female')) # 161.0

复制package main

import (
	"fmt"
	"math"
)

// 基于父母身高中值法预测成年身高
func predictAdultHeight(father, mother float64, sex string) (float64, error) {
	midParent := (father + mother) / 2
	switch sex {
	case "male":
		return math.Round((midParent+6.5)*10) / 10, nil
	case "female":
		return math.Round((midParent-6.5)*10) / 10, nil
	default:
		return 0, fmt.Errorf("性别参数无效: %s", sex)
	}
}

func main() {
	// 示例：父亲175cm，母亲160cm
	if h, err := predictAdultHeight(175, 160, "male"); err == nil {
		fmt.Printf("男孩预测身高: %.1f cm\n", h) // 174.0
	}
	if h, err := predictAdultHeight(175, 160, "female"); err == nil {
		fmt.Printf("女孩预测身高: %.1f cm\n", h) // 161.0
	}
}

复制/**
 * 基于父母身高中值法预测儿童成年身高
 * @param {number} fatherCm - 父亲身高(cm)
 * @param {number} motherCm - 母亲身高(cm)
 * @param {'male'|'female'} sex - 性别
 * @returns {number} 预测成年身高(cm)
 */
function predictAdultHeight(fatherCm, motherCm, sex) {
  const midParent = (fatherCm + motherCm) / 2;
  if (sex === 'male') {
    return Math.round((midParent + 6.5) * 10) / 10;
  } else if (sex === 'female') {
    return Math.round((midParent - 6.5) * 10) / 10;
  } else {
    throw new Error('性别必须为 male 或 female');
  }
}

// 示例
console.log(predictAdultHeight(175, 160, 'male'));   // 174.0
console.log(predictAdultHeight(175, 160, 'female')); // 161.0