python学习 第五个程序 计算BMI

# CalBMI.py
height, weight = eval(input("请输入身高（米）和体重（千克）［用逗号隔开］："))
BMI = weight / pow(height, 2)
condition = ""
if BMI < 18.5:
    condition = "偏瘦"
elif BMI < 25:
    condition = "正常"
elif BMI < 30:
    condition = "偏胖"
else:
    condition = "肥胖"
print("BMI指数：{}".format(condition))