主要是为了提醒自己要——保重
height = input('请输入身高(m):') weight = input('请输入体重(KG):') age = input('请输入年龄:') sex = input('请输入性别(男:1,女:0):') BMI = float(weight) / (float(height) * float(height)) per = 1.2 * BMI + 0.23 * int(age) - 5.4 - 10.8 * int(sex) if sex == 1: if 15 > per > 18: print('体脂率为{0}合格'.format(str(per))) else: print('体脂率为{0}不合格'.format(str(per))) else: if 25 < per < 28: print('体脂率为{0}合格'.format(str(per))) else: print('体脂率为{0}不合格'.format(str(per)))