計算用戶輸入的數量和這些輸入的平均值

Question

嘗試完成python作業任務，部分程序需要計算它計算出多少個BMI以及用戶寫“n”后這些BMI的平均值。 幫助將不勝感激，這就是我現在所擁有的。

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

在進入while循環之前，您需要創建一個空列表bmi_records 。 然后只需將新的 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}')