Python 程序：将两个列表相加

编写一个 Python 程序，使用 For 循环和 While 循环，并通过实际示例将两个列表（列表项）相加。

Python 程序：将两个列表相加的示例

在此程序中，我们使用 For 循环 来迭代给定 列表 中的每个元素。在循环内部，我们相加第一个和第二个列表的元素。

NumList1 = [10, 20, 30]
NumList2 = [15, 25, 35]
total = []
 
for j in range(3):
    total.append( NumList1[j] + NumList2[j])
 
print("\nThe total Sum of Two Lists =  ", total)

在这个 Python 示例中，NumList1 = [10, 20, 30]，NumList2 = [15, 25, 35]，total = [] 是 列表

For 循环 – 第一次迭代： for 0 in range(3) – 条件为 True
total.append((NumList1[0] + NumList2[0] )
total[0] = 25 (10 + 15)

第二次迭代：for 1 in range(3) – 条件为 True
total.append((NumList1[1] + NumList2[1] )
total[1] = 45 (20 + 25)

第三次迭代：for 2 in range(3) – 条件为 True
total.append((NumList1[2] + NumList2[0] )
total[2] = 65 (30 + 35)

第四次迭代：for 3 in range(3) – 条件为 False。 因此，退出 For 循环。

Python 程序：使用 For 循环将两个列表相加

在此程序中，我们使用了两个 For 循环。它们允许用户为每个列表输入自己的元素数量。

NumList1 = []
NumList2 = []
total = []

Number = int(input("Please enter the Total Number of List Elements: "))
print("Please enter the Items of a First List   ")
for i in range(1, Number + 1):
    value = int(input("Please enter the Value of %d Element : " %i))
    NumList1.append(value)

print("Please enter the Items of a Second List   ")
for i in range(1, Number + 1):
    value = int(input("Please enter the Value of %d Element : " %i))
    NumList2.append(value)
    
for j in range(Number):
    total.append( NumList1[j] + NumList2[j])
 
print("\nThe total Sum of Two Lists =  ", total)

Please enter the Total Number of List Elements: 3
Please enter the Items of a First List   
Please enter the Value of 1 Element : 22
Please enter the Value of 2 Element : 33
Please enter the Value of 3 Element : 44
Please enter the Items of a Second List   
Please enter the Value of 1 Element : 55
Please enter the Value of 2 Element : 66
Please enter the Value of 3 Element : 77

The total Sum of Two Lists =   [77, 99, 121]

Python：使用 For 循环将两个列表相加的示例 2

这个 Python 相加两个列表的程序与上面的相同。但是，我们使用一个 for 循环来输入 List1 和 List2 的元素

NumList1 = []
NumList2 = []
total = []

Number = int(input("Please enter the Total Number of List Elements: "))
print("Please enter the Items of a First and Second List   ")
for i in range(1, Number + 1):
    List1value = int(input("Please enter the %d Element of List1 : " %i))
    NumList1.append(List1value)

    List2value = int(input("Please enter the %d Element of List2 : " %i))
    NumList2.append(List2value)
    
for j in range(Number):
    total.append( NumList1[j] + NumList2[j])
 
print("\nThe total Sum of Two Lists =  ", total)

Python 两个列表相加的输出

Please enter the Total Number of List Elements: 4
Please enter the Items of a First and Second List   
Please enter the 1 Element of List1 : 10
Please enter the 1 Element of List2 : 35
Please enter the 2 Element of List1 : 20
Please enter the 2 Element of List2 : 45
Please enter the 3 Element of List1 : 50
Please enter the 3 Element of List2 : 75
Please enter the 4 Element of List1 : 90
Please enter the 4 Element of List2 : 135

The total Sum of Two Lists =   [45, 65, 125, 225]

使用 While 循环将两个列表相加

这个相加两个列表元素的程序与上面的相同。我们只是将 For 循环替换为 While 循环。

NumList1 = []
NumList2 = []
total = []
i = 1
j = 0

Number = int(input("Please enter the Total Number of List Elements: "))
print("Please enter the Items of a First and Second List   ")
while(i <= Number):
    List1value = int(input("Please enter the %d Element of List1 : " %i))
    NumList1.append(List1value)

    List2value = int(input("Please enter the %d Element of List2 : " %i))
    NumList2.append(List2value)
    i = i + 1
    
while(j < Number):
    total.append( NumList1[j] + NumList2[j])
    j = j + 1
 
print("\nThe total Sum of Two Lists =  ", total)

使用 while 循环将两个列表相加的输出。

Please enter the Total Number of List Elements: 3
Please enter the Items of a First and Second List   
Please enter the 1 Element of List1 : 100
Please enter the 1 Element of List2 : 200
Please enter the 2 Element of List1 : 300
Please enter the 2 Element of List2 : 400
Please enter the 3 Element of List1 : 500
Please enter the 3 Element of List2 : 600

The total Sum of Two Lists =   [300, 700, 1100]