计算用户输入的数量和这些输入的平均值

Question

尝试完成python作业任务，部分程序需要计算它计算出多少个BMI以及用户写“n”后这些BMI的平均值。 帮助将不胜感激，这就是我现在所拥有的。

y = True

while y:   

weight = float(input("Enter weight in kg:"))
height = float(input("Enter height in m:"))
bmi = weight/(height**2)

if bmi <18:
    print("Your BMI is", bmi, "\nIt indicates you are underweight")
elif bmi >=18 and bmi <=25:
    print("Your BMI is", bmi, "\nIt indicates you are within normal bounds")
elif bmi >25:
    print("Your BMI is", bmi, "\nIt indicates you are overweight")

again = str(input("Another BMI? y/n:"))
if again == "n":
    y = False

Answer 1

在进入while循环之前，您需要创建一个空列表bmi_records 。 然后只需将新的 BMI 附加到bmi_records列表。

bmi_records = []
while ....
    bmi = ...
    bmi_records.append(bmi)
    ....

print(f'Average of {len(bmi_records)} BMIs entered: {sum(bmi_records)/len(bmi_records):.1f}')