Python 程序：求N個自然數的和與均值

寫一個 Python 程序，用 While 循環、For 循環和函數的例子來求N個自然數的和與均值。

用 For 循環求N個自然數的和與均值的 Python 程序

該程序允許用戶輸入任意整數值。接下來，這個 Python 程序使用 For 循環計算從 1 到用戶指定值的自然數的總和和平均值。

# Python Program to find Sum and Average of N Natural Numbers

number = int(input("Please Enter any Number: "))
total = 0

for value in range(1, number + 1):
    total = total + value

average = total / number

print("The Sum of Natural Numbers from 1 to {0} =  {1}".format(number, total))
print("Average of Natural Numbers from 1 to {0} =  {1}".format(number, average))

用於循環輸出的自然數的 Python 和與均值

Please Enter any Number: 5
The Sum of Natural Numbers from 1 to 5 =  15
Average of Natural Numbers from 1 to 5 =  3.0

使用 While 循環計算N個自然數的和與均值的 Python 程序

在這個尋找自然數的和與均值的 Python 程序中，我們將循環的替換為循環的。請參考 C 示例以迭代方式理解這個 Python 代碼執行。

# Python Program to find Sum and Average of N Natural Numbers

number = int(input("Please Enter any Number: "))

total = 0
value = 1

while (value <= number):
    total = total + value
    value = value + 1

average = total / number

print("The Sum of Natural Numbers from 1 to {0} =  {1}".format(number, total))
print("Average of Natural Numbers from 1 to {0} =  {1}".format(number, average))

Python 使用 while Loop 輸出自然數的總和和平均值

Please Enter any Number: 10
The Sum of Natural Numbers from 1 to 10 =  55
Average of Natural Numbers from 1 to 10 =  5.5

用函數計算N個自然數的和與均值的 Python 程序

在這個尋找自然數的和與均值的 Python 程序中，我們創建了一個新的函數來尋找自然數的和與均值。在這個函數中，我們使用了 If Else 語句

# Python Program to find Sum and Average of N Natural Numbers

def sum_and_avg_of_natural_numbers(num):
    if(num == 0):
        return num
    else:
        return (num * (num + 1) / 2)

number = int(input("Please Enter any Number: "))

total = sum_and_avg_of_natural_numbers(number)
average = total / number

print("The Sum of Natural Numbers from 1 to {0} =  {1}".format(number, total))
print("Average of Natural Numbers from 1 to {0} =  {1}".format(number, average))

Python 使用函數輸出自然數的總和和平均值

Please Enter any Number: 100
The Sum of Natural Numbers from 1 to 100 =  5050.0
Average of Natural Numbers from 1 to 100 =  50.5

用遞歸實現N個自然數的和與均值的 Python 程序

這個 Python 程序求自然數的和與均值和上面的例子一樣，但是這次我們用的是遞歸。

# Python Program to find Sum and Average of N Natural Numbers

def sum_and_avg_of_natural_numbers(num):
    if(num == 0):
        return num
    else:
        return (num + sum_and_avg_of_natural_numbers(num - 1))

number = int(input("Please Enter any Number: "))

total = sum_and_avg_of_natural_numbers(number)
average = total / number

print("The Sum of Natural Numbers from 1 to {0} =  {1}".format(number, total))
print("Average of Natural Numbers from 1 to {0} =  {1}".format(number, average))