我如何使用用戶輸入浮點數並在 Python 中找到平均值、最小值、最大值和范圍

Question

我知道如何用整數來做到這一點，但我對如何從用戶那里獲取浮點數並找到平均值、最小值、最大值和范圍感到困惑。 我不斷收到一條錯誤消息：TypeError: 'float' object is not iterable。

到目前為止，這是我的最小代碼，我知道它不起作用，但只是尋找有關如何獲取浮點用戶數並找到平均值、最小值、最大值和范圍的建議。 謝謝！

import statistics
def main ():
    
    userNum= float(input("Give me 5 numbers "))
    
    
    average = statistics.mean(userNum)
    print("The average of the numbers given is: ", average)

    print(max(userNum))
    print(min(userNum))

    main() 

Answer 1

您不能直接將輸入轉換為浮點數。 首先，您需要拆分用戶輸入。 如果它是這樣的：

"3.4, 5.6, 8.7, 6.4, 9.8"

然后像這樣嘗試：

import statistics
def main():
  userNum = float(input("Give me 5 numbers "))
  userNum = [float(x) for x in userNum.split(", ")]
  average = statistics.mean(userNum)
  print("The average of the numbers given is: ", average)

  print(max(userNum))
  print(min(userNum))
  main()

Answer 2

首先，您需要在調用main()函數時取消縮進，我的意思是代碼的最后一行。

這是我沒有statistics模塊的解決方案，因為我不太熟悉它。

def main():
    tries = 0
    while True:
        tries += 1
        print(f'try number {tries}')
        user_num = float(input('Enter five floating points: '))
        if tries == 1:
            sum1 = user_num
        elif tries == 2:
            sum2 = user_num
        elif tries == 3:
            sum3 = user_num
        elif tries == 4:
            sum4 = user_num
        elif tries == 5:
            sum5 = user_num
            sums = sum1 + sum2 + sum3 + sum4 + sum5
            print(f'sum is {sums}')
            average = sums / tries
            print(f'The average of the numbers given is: {average}')
            all_numbers = [sum1, sum2, sum3, sum4, sum5]
            all_numbers.sort()
            print(f'sorted: {all_numbers}')
            print(f'the minimum number is {all_numbers[-1]}')
            print(f'the maximum number is {all_numbers[0]}')
            break


main()

我希望你喜歡它。

玩得開心 ：）

Answer 3

更新：這是我找到的解決方案。 也許它太簡單了，但它對我有用。

def main ():
 import statistics
 userNum= input("Enter 5 floating point values seperated by a space")

 x=[float(x) for x in userNum.split(" ")] #converts string to floating point 
 values

 average = statistics.mean(x) #find the average value entered
 print("The average of the numbers given is: ", average) #print the average 
 number entered

 print (min(x), "The min number given") #print the min number entered
 print (max(x), "The max number given") #print the max number entered


 diff= max(x) - min(x) #calculate the range
 print (diff, "This is the range of numbers given") #print the range


main()