# -*- coding: utf-8 -*-

height = input("请输入你的身高(m)：")
weight = input("请输入你的体重(kg)：")

height = float(height)
weight = float(weight)
bmi = weight/(height*height)

if bmi>32:
    condition = "严重肥胖"
elif bmi>28:
    condition = "肥胖"
elif bmi>25:
    condition = "过重"
elif bmi>18.5:
    condition = "正常"
else:
    condition = "过轻"

print("\n你的BMI指数是%.1f\n评定为%s" % (bmi,condition))在此插入代码