name=input("请输入姓名:") height=float((input("请输入身高【Ｍ】:"))) weight=float((input("请输入体重【KG】:"))) BMI= weight/(height*height) print ("%s的BMI为：%.2f"%(name,BMI)) if BMI < 18.5: print ('过轻') elif BMI >=18.5 and BMI <25: print ('正常') elif BMI >=25 and BMI < 28: print ('过重') elif BMI>=28 and BMI<32: print ('肥胖') elif 32< BMI: print ('严重肥胖')
写的不错
很好的呀
请教下：有必要用三个括号么？
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name=input("请输入姓名:") height=float((input("请输入身高【Ｍ】:"))) weight=float((input("请输入体重【KG】:"))) BMI= weight/(height*height) print ("%s的BMI为：%.2f"%(name,BMI)) if BMI < 18.5: print ('过轻') elif BMI >=18.5 and BMI <25: print ('正常') elif BMI >=25 and BMI < 28: print ('过重') elif BMI>=28 and BMI<32: print ('肥胖') elif 32< BMI: print ('严重肥胖')