Python 程序：計算偶數和

寫一個 Python 程序，用 While 循環和 For 循環計算從 1 到 N 的偶數和，並舉例說明。

用 For 循環計算 1 到 N 的偶數和的 Python 程序

這個 Python 程序允許用戶輸入最大限制值。接下來，Python 將計算從 1 到用戶輸入值的偶數總和。

在這個例子中，我們使用 Python For Loop 將數字保持在 1 和最大值之間。

提示:建議大家參考 Python 偶數從 1 到 N 的文章，了解 Python 中列印偶數背後的邏輯。

# Python Program to Calculate Sum of Even Numbers from 1 to N

maximum = int(input(" Please Enter the Maximum Value : "))
total = 0

for number in range(1, maximum+1):
    if(number % 2 == 0):
        print("{0}".format(number))
        total = total + number

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

Python 偶數和輸出

 Please Enter the Maximum Value : 15
2
4
6
8
10
12
14
The Sum of Even Numbers from 1 to 15 = 56

不用 If 語句計算 1 到 N 的偶數和的 Python 程序

這個 Python 偶數和程序和上面一樣。但是我們修改了 Python For 循環來移除 If 塊。

# Python Program to Calculate Sum of Even Numbers from 1 to N

maximum = int(input(" Please Enter the Maximum Value : "))
total = 0

for number in range(2, maximum + 1, 2):
    print("{0}".format(number))
    total = total + number

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

Python 偶數和使用 for 循環輸出

 Please Enter the Maximum Value : 12
2
4
6
8
10
12
The Sum of Even Numbers from 1 to 12 = 42

使用 While 循環尋找偶數和的 Python 程序

在這個 Python 偶數和的例子中，我們將循環的替換為而循環的。

# Python Program to Calculate Sum of Even Numbers from 1 to N

maximum = int(input(" Please Enter the Maximum Value : "))
total = 0
number = 1

while number <= maximum:
    if(number % 2 == 0):
        print("{0}".format(number))
        total = total + number
    number = number + 1

print("The Sum of Even Numbers from 1 to N = {0}".format(total))

Python 使用 while 循環輸出對偶數求和

 Please Enter the Maximum Value : 20
2
4
6
8
10
12
14
16
18
20
The Sum of Even Numbers from 1 to N = 110

從 1 到 100 尋找偶數和的 Python 程序

這個 Python 程序允許用戶輸入最小值和最大值。接下來，Python 計算從最小值到最大值的偶數總和。

# Python Program to Calculate Sum of Even Numbers from 1 to 100

minimum = int(input(" Please Enter the Minimum Value : "))
maximum = int(input(" Please Enter the Maximum Value : "))
total = 0

for number in range(minimum, maximum+1):
    if(number % 2 == 0):
        print("{0}".format(number))
        total = total + number

print("The Sum of Even Numbers from {0} to {1} = {2}".format(minimum, number, total))