使用接受数组作为参数的 python 函数的帮助

Question

我正在请求 HW 分配的帮助，该分配确定一组名称的 BMI，并输出该名称是否体重不足、正常体重或超重。 到目前为止，这是我的程序，我遇到问题的部分是最后的函数。

#function to calculate bmi
def bmi(weight, height):
    return weight * 703 / height ** 2

name_list = ['Spiderman', 'Ironman', 'Black Widow', 'Hulk', 'Thanos', 'Shuri']

#prompting the user for the height of the individuals
heights = []
for name in name_list:
    heights.append(int(input(f"Please input the height in inches for {name}: ")))

#prompting the user for the weight of the individuals
weights = []
for name in name_list:
    weights.append(int(input(f"Please input the weight in pounds for {name}: ")))

#outputting the BMI for each individual
for i, name in enumerate(name_list):
    print(f"The BMI for {name} is {bmi(weights[i], heights[i])}.")

#appending the BMI to a new list
bmi_list = []
for i, name in enumerate(name_list):
        bmi_list.append((bmi(weights[i], heights[i])))
        
#function to calculate if the person is underweight, normal weight, or overweight.
#BMI of <= 18 is underweight, BMI of >= 19 and <=25 is normal and BMI of >26 is overweight
def calc(bmi_list):
    for i in bmi_list:
        if i <= 18:
            print(f"{name} is underweight.")
        if i >= 19 and i <= 25:
            print(f"{name} is normal weight.")
        if i >= 26:
            print(f"{name} is overweight.")
calc(bmi_list)

最后一个函数的输出是

Shuri is normal weight.
Shuri is normal weight.
Shuri is normal weight.
Shuri is normal weight.
Shuri is underweight.
Shuri is underweight.

而我需要它像这样输出：

Spiderman is normal weight.
Ironman is normal weight.
Black Widow is normal weight.
Hulk is normal weight.
Thanos is underweight.
Shuri is underweight.

Answer 1

您需要遍历name_list而不仅仅是使用变量name （它具有for i, name循环中剩下的最后一个值）。 您可以使用zip()将两个列表一起循环。

def calc(name_list, bmi_list):
    for i, name in zip(bmi_list, name_list):
        if i <= 18:
            print(f"{name} is underweight.")
        elif i <= 25:
            print(f"{name} is normal weight.")
        else:
            print(f"{name} is overweight.")

calc(name_list, bmi_list)

您还应该将elif and else` 用于互斥条件。

不为每个属性设置单独的列表通常更容易。 相反，请列出元组或字典，以便将所有相关信息放在一起。