Python123: 程序的控制结构 (第4周)

一、实例5：身体质量指数BMIweb height,weight =eval(input()) bmi=weight/pow(height,2) print(“BMI数值为:{:.2f}”.format(bmi)) who,nat = “”,"" if bmi<18.5: who,nat =“偏瘦”,“偏瘦” elif 18.5<=bmi<24: who, nat=“正常”,“正常” elif 2

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