y_or_n = input('是否退出程序(y/n)？') while y_or_n != 'y': height, weight = eval(input("请输入身高(米)和体重(公斤)[逗号隔开]: ")) bmi = weight / pow(height, 2) print("BMI 数值为：{:.2f}".format(bmi)) who, nat = "", "" if bmi < 18.5: who, nat = "偏瘦", "偏瘦" elif 18.5 <= bmi < 24: who, nat = "正常", "正常" elif 24 <= bmi < 25: who, nat = "正常", "偏胖" elif 25 <= bmi < 28: who, nat = "偏胖", "偏胖" elif 28 <= bmi < 30: who, nat = "偏胖", "肥胖" else: who, nat = "肥胖", "肥胖" print("BMI 指标为:国际'{0}', 国内'{1}'".format(who, nat)) y_or_n = input('是否退出程序(y/n)？') y_or_n = input('是否退出程序(y/n)？') while y_or_n != 'y': height, weight = eval(input("请输入身高(米)和体重(公斤)[逗号隔开]: ")) bmi = weight / pow(height, 2) print("BMI 数值为：{:.2f}".format(bmi)) who, nat = "", "" if bmi < 18.5: who, nat = "偏瘦", "偏瘦" elif 18.5 <= bmi < 24: who, nat = "正常", "正常" elif 24 <= bmi < 25: who, nat = "正常", "偏胖" elif 25 <= bmi < 28: who, nat = "偏胖", "偏胖" elif 28 <= bmi < 30: who, nat = "偏胖", "肥胖" else: who, nat = "肥胖", "肥胖" print("BMI 指标为:国际'{0}', 国内'{1}'".format(who, nat)) y_or_n = input('是否退出程序(y/n)？')参照以上代码，写出类似的用于计算BMR的代码

Sure! 以下是一个类似的用于计算BMR的代码：

y_or_n = input('是否退出程序(y/n)？')
while y_or_n != 'y':
    gender = input("请输入性别（男/女）：")
    weight, height, age = eval(input("请输入体重（公斤）、身高（厘米）和年龄[逗号隔开]: "))
    if gender == "男":
        bmr = 13.7 * weight + 5.0 * height - 6.8 * age + 66
    elif gender == "女":
        bmr = 9.6 * weight + 1.8 * height - 4.7 * age + 655
    else:
        print("性别输入错误，请重新输入！")
        continue
    print("BMR 数值为：{:.2f}".format(bmr))
    y_or_n = input('是否退出程序(y/n)？')

这个代码与之前的BMI计算代码类似，但是根据性别、体重、身高和年龄计算BMR。其中，男性的BMR计算公式为：13.7 × 体重（公斤） + 5.0 × 身高（厘米） - 6.8 × 年龄（岁） + 66；女性的BMR计算公式为：9.6 × 体重（公斤） + 1.8 × 身高（厘米） - 4.7 × 年龄（岁） + 655。