Usage instance parsing of enumerate in Python

The usage of enumerate in Python is used to get counted in the For loop, and this article shows you the use of enumerate in Python as an instance. Specific as follows:

The enumerate parameter is a variable that can be traversed, such as a string, a list, and so on; The return value is the enumerate class.

The sample code looks like this:

Import strings = String.ascii_lowercasee = Enumerate (s) Print sprint list (e)

The output is:

abcdefghij[(0, ' a '), (1, ' B '), (2, ' C '), (3, ' d '), (4, ' E '), (5, ' F '), (6, ' G '), (7, ' H '), (8, ' I '), (9, ' J ')]

You can use enumerate when both the index and value values are required.

Enumerate Application Examples:

In this example, line is a string containing 0 and 1, to find out the 1:

Method One:

def read_line:  sample = {}  n = len (line) for I in  range (n):    if line[i]!= ' 0 ':      sample[i] = Int (li Ne[i])  return sample

Method Two:

def xread_line (line):  return ((Idx,int (val)) for IDX, Val-Enumerate (line) if val! = ' 0 ') print read_line (' 0001110101 ') Print List (Xread_line (' 0001110101 '))

I believe this example will help you deepen the usage of enumerate in Python.

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