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h=float(input('请输入身高(如1.78)'))

w=float(input('请输入体重(如75)kg'))

bmi = (w/(h**2))

print(f'bmi为:{bmi:.1f}')

if bmi<=18.5:

    print('过轻')

elif bmi<25:

    print('正常')

elif bmi<28:

    print('过重')

elif bmi<32:

    print('肥胖')

else:

    print('严重肥胖')


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