Python learns the note taking _ data sorting method
- 2020-04-02 13:37:50
- OfStack
1. In situ sort: sort() method is used to sort the data in the specified order and replace the original data with the sorted data (the original order is lost), such as:
>>> data1=[4,2,6,432,78,43,22,896,42,677,12]
>>> data1.sort()
>>> data1 # The original order is replaced
[2, 4, 6, 12, 22, 42, 43, 78, 432, 677, 896]
2. Replication sort: the built-in function sorted() is used to arrange the data in the specified order and return an ordered copy of the original data (the original order is kept), such as:
>>> data1=[4,2,6,432,78,43,22,896,42,677,12]
>>> data2=sorted(data1)
>>> data1
[4, 2, 6, 432, 78, 43, 22, 896, 42, 677, 12] # Original order reservation
>>> data2
[2, 4, 6, 12, 22, 42, 43, 78, 432, 677, 896] # Sort copies
>>>