[Python Supplements]enumerate () function

When working with various sequences in Python, you can use the enumerate () function if we want to display the elements of the sequence and their subscripts .

The enumerate () function is used to iterate through the elements in the sequence and their subscripts, using the following:

1. The parameter is a tuple of tuple:

For index, value in enumerate (' A ', ' B ', ' C '): ' Subscript    , Element ' '    print (index,value)

2. The parameter is a list of lists:

For index, value in enumerate ([1, 2, 3]):    ' subscript, Element ' '    print (index, value)

3. The parameter is a string of strings:

For index, value in enumerate (' abc '):    ' subscript, Element ' '    print (index, value)

4. The parameter is a dictionary dict:

For index, value in enumerate ({' A ': 1, ' B ': 2}):    ' subscript (dictionary unordered), element (key value) '    print (index, value)

[Python Supplements]enumerate () function