What is the CMP function of the Python dictionary? What is the role of CMP functions?

In this article, let's look at the built-in functions in the Python dictionary, which I'll What are the CMP in PythonFor instructions, and pythoncmp ()method to parse. Well, don't say much, let's get into the article.

Describe

The CMP () function of a Python dictionary is used to compare two dictionary elements.

Grammar

CMP () method syntax:

CMP (Dict1, DICT2)

Parameters

Dict1--A dictionary of comparisons.

Dict2--A dictionary of comparisons.

return value

If the elements of the two dictionary return the same 0, if the dictionary dict1 is greater than the dictionary Dict2 returns 1, if the dictionary dict1 is less than the dictionary dict2 returns-1.

Instance

The following example shows how the CMP () function is used:

#!/usr/bin/python#-*-Coding:utf-8-*-dict1 = {' Name ': ' Zara ', ' Age ': 7};d ict2 = {' Name ': ' Mahnaz ', ' age ': +};d ict3 = {' name ': ' Abid ', ' age ': +};d ict4 = {' name ': ' Zara ', ' Age ': 7};p rint "Return Value:%d"% cmp (Dict1, dict2) print "return Value:%d "% cmp (DICT2, dict3) print" Return Value:%d "% cmp (Dict1, DICT4)

The result of the above example output is:

Return Value: -1return value:1return value:0