weight = 80.5 / (1.75*1.75)

weight 26.285714285714285 "%.2f" % weight '26.29' weight = 26.29 if weight <=18.5: print("guoqing") elif weight < 25: print("zhengchang") elif weight <28: print("guozhong") elif weight <32: print("feipang") else: print("yan zhong fei pang")

guozhong