寻找解决方案的绝对初学者

Question

我想添加一行来计算您可以增加多少公斤的体重以保持“最佳 BMI”。 有人可以帮我吗？

name = input('Enter your name: ')
height = int(input('Your height?(in cm) '))
weight = int(input('Your weight?(in kg) '))

bmi = float(round(weight/(height/100)/(height/100),1))

#current_weight = float(round(bmi*(height/100)*(height/100),1))

#max_weight to keep bmi < 24.9  

print('\n''\n''Hey',name,'\n''Your Body Mass Index (BMI) is:',bmi)
if bmi < 18.5:
    print(name,'you are underweight!')
if 18.5 < bmi < 24.9:
    print(name,'your weight is OK !')
if 24.9 < bmi < 29.9:
    print(name,'you are overweight!')
if bmi > 29.9:
    print(name,'you are obese!')

#print('you can put on another',x,'kilograms, don't worry!')

Answer 1

这很简单，和你对 BMI 公式的理解有很大关系。符合您要求的代码如下：

maxweight = (height**2/10000)*24.9
dif = round(abs(maxweight-weight),2)
print(name+", you have",dif,"kilograms to go until you reach the maximum normal weight")

这适用于体重过轻和体重过重的值，始终使用函数abs() 返回一个正值。

或者，您可以使用一个函数，它可以更好地处理这两种情况：

def getDifferenceString(name,weight,height):
 maxweight = (height ** 2 / 10000) * 24.9
 if maxweight<weight:
  return "You should go to the gym, "+name+", because you are "+str(round(abs(maxweight-weight),2))+" over the maximum normal weight"
 else:
  return "No worry, "+name+", you can put on " + str(round(abs(maxweight - weight), 2)) + " more kilos"

print(getDifferenceString(name,weight,height))

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说明：

• maxweight代表直接出自BMI公式的最大正常体重
• dif是人的weight与maxweight之差的绝对值，保留2位小数

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希望这会有所帮助！