One : Tuple
Python tuples are similar to lists, except that the elements of the tuple cannot be modified. Use parentheses for tuples and square brackets for lists.
1:1: Format of the tuple
1.2: Accessing tuples
Fetch data by index
1.3: Number of queries
count
query the number of occurrences
1.4: Query Index
index
: The index of the query element, if there is a corresponding element, the corresponding index will be returned, otherwise an error will be reported
1.5: Modify data ( cannot be modified )
1.6: Type Conversion
1.7: Element loop value
for
while
Two: dictionary
2.1: Accessing the dictionary
2.2 New
2.3: Modification
2.4: Delete
delete a single
empty
2.5: Query length
2.6 Loop value
Get the keys from the dictionary
get the value from the dictionary
Get the keys and values from the dictionary
The first way:
The second way:
Implement index value
