python遍历创建多维列表

lists = [[] for i in range(3)] # 创建的是多行三列的二维列表

for i in range(3):
    lists[0].append(i)
for i in range(5):
    lists[1].append(i)
for i in range(7):
    lists[2].append(i)
print("lists is:", lists)

#lists is: [[0, 1, 2], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4, 5, 6]]

使用二维列表索引遍历二维列表

sum_0 = 0
for i in range(len(lists)):
    for j in range(len(lists[i])):
        print(lists[i][j])
        sum_0 += lists[i][j]
print("The sum_0 of Lists:", sum_0)

0
1
2
0
1
2
3
4
0
1
2
3
4
5
6
The sum of Lists: 34
*

使用二维列表句柄遍历二维列表

sum_1 = 0
for i in lists:
for j in i:
sum_1 += j

print(“The sum_1 of Lists:”, sum_1)

The sum_1 of Lists: 34

*sum_1 = 0
for i in lists:
    for j in i:
        sum_1 += j

print("The sum_1 of Lists:", sum_1)

#The sum_1 of Lists: 34
文章内容来自https://www.cnblogs.com/cloud-ken/p/10019253.html