h = input('height:')
w = input('weight:')
h=float(h)
w=float(w)
bmi = w / h**2
if bmi < 18.5:
print('过轻')
elif 18.5 < bmi < 25:
print('正常')
elif 25 < bmi < 28:
print('过重')
elif 28 < bmi <32:
print('肥胖')
else:
print('严重肥胖')
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得
h = input('height:')
w = input('weight:')
h=float(h)
w=float(w)
bmi = w / h**2
if bmi < 18.5:
print('过轻')
elif 18.5 < bmi < 25:
print('正常')
elif 25 < bmi < 28:
print('过重')
elif 28 < bmi <32:
print('肥胖')
else:
print('严重肥胖')