height = 1.75weight = 80.5bmi = weight / (pow(1.75,2))if bmi < 18.5:    print('过轻')elif bmi >= 18.5 < 25:    print('正常')elif bmi >=25 < 28:    print('过重')elif bmi >=28 <32:    print('肥胖')else:    print('过于肥胖,该减肥了！')