Python Traversing List Index and Value Methods (Three Methods)

Three methods for traversing the index and value of a list:

Recently, I have been learning the Python programming language and have found that it greatly improves my work efficiency. Especially on Valentine's Day, I wrote this blog post. There will be no more chatter, just the code.

#!/usr/bin/env python
# -*- coding: utf-8 -*-
if __name__ == '__main__':
 list = ['html', 'js', 'css', 'python']
 # Method1
 print 'Traversal list method1:
 for i in list:
 print ("Index：%s Value：%s" % (list.index(i + 1, i))
 print '\nTraversal list method2:
 # Method2
 for i in range(len(list)):
 print ("Index：%s Value：%s" % (i + 1, list[i]))
 # Method3
 print '\nTraversal list method3:
 for i, val in enumerate(list):
 print ("Index：%s Value：%s" % (i + 1, val))
 # Method3
 print '\nTraversal list method3 (Setting the starting position of the traversal, only changing the starting sequence number):'
 for i, val in enumerate(list, 2)
 print ("Index：%s Value：%s" % (i + 1, val))

The result after running the code is shown in the figure below:

Here is an introduction to the enumerate() method, by looking at the help() function, the query results are as follows:

Just a reminder, the second parameter of the enumerate() function only changes the starting value of the sequence, and does not change anything else

That is all for the content of this article. I hope the content of this article can bring certain help to everyone's learning or work, and also hope to give more support to the Shout tutorial!

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