Hướng dẫn how to split nested list in python - cách tách danh sách lồng nhau trong python

Đưa ra một danh sách 2D lồng nhau, nhiệm vụ là chia danh sách lồng nhau thành hai danh sách sao cho danh sách đầu tiên chứa các phần tử đầu tiên của mỗi người phụ và danh sách thứ hai chứa phần tử thứ hai của mỗi người phụ. Phương pháp số 1: Sử dụng MAP, ZIP [] & NBSP;Method #1: Using map, zip[] 

Python3

Các

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

3

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

4

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

5

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

6

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

7

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

8

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

9=

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

1

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

2

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

5, ____35

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

2

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

7

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

8

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

3ini_list 0

Output:

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

& nbsp; Phương pháp số 2: Sử dụng danh sách hiểu & nbsp;Method #2: Using list comprehension 

Python3

Các

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

3

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

4

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

5

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

6

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

7

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

8

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

9=

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

1

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

2

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

5, ____35

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

2

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

7

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

8

& nbsp; Phương pháp số 2: Sử dụng danh sách hiểu & nbsp;

[[6=

Output:

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [2, 3, 65, 2] 
 [1, 4, 45, 223]

15______5Method #3: Using operator.itemgetter[] 

Python3

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

3, 5

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

7, 7

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

7______8

Các

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

3

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

4

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

5

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

6

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

7

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

8

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

9=

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

1

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

2

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

5, ____35

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

2

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

7

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

8

& nbsp; Phương pháp số 2: Sử dụng danh sách hiểu & nbsp;

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

3, 5

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

7, 7

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

7, 9

Output:

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

[[6=

Python3

Các

15______5

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [2, 3, 65, 2] 
 [1, 4, 45, 223]

66=

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [2, 3, 65, 2] 
 [1, 4, 45, 223]

68

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

3, 5

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

7, 7

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

7______8

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [2, 3, 65, 2] 
 [1, 4, 45, 223]

73

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [2, 3, 65, 2] 
 [1, 4, 45, 223]

74

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [2, 3, 65, 2] 
 [1, 4, 45, 223]

75=

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [2, 3, 65, 2] 
 [1, 4, 45, 223]

68

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [2, 3, 65, 2] 
 [1, 4, 45, 223]

78=

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [2, 3, 65, 2] 
 [1, 4, 45, 223]

68

& nbsp; Phương thức số 3: Sử dụng toán tử.Itemgetter [] & nbsp;

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [2, 3, 65, 2] 
 [1, 4, 45, 223]

73

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [2, 3, 65, 2] 
 [1, 4, 45, 223]

91

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [2, 3, 65, 2] 
 [1, 4, 45, 223]

92

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [2, 3, 65, 2] 
 [1, 4, 45, 223]

932==18

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [2, 3, 65, 2] 
 [1, 4, 45, 223]

98

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [2, 3, 65, 2] 
 [1, 4, 45, 223]

99

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

00

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [2, 3, 65, 2] 
 [1, 4, 45, 223]

73

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

02

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

03

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [2, 3, 65, 2] 
 [1, 4, 45, 223]

99

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

05

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

3

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

2

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

08,

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

7

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

11

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

12,

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]

7, 9

20 2122 23

initial list [[1, 2], [4, 3], [45, 65], [223, 2]]
final lists [1, 4, 45, 223] 
 [2, 3, 65, 2]