Home Backend Development Python Tutorial How to compare string sizes in python

How to compare string sizes in python

Jun 27, 2019 am 11:36 AM

How to compare string sizes in python

Python's string comparison is similar to Java's. It also requires a comparison function and cannot use the == symbol. Use the cmp() method to compare two objects. If they are equal, 0 is returned, if the former is greater than the latter, 1 is returned, and if less than the latter, -1 is returned.

1

2

3

4

5

6

7

8

9

10

11

a = "abc"

b = "abc"

c = "aba"

d = "abd"

print cmp(a,b)

print cmp(a,c)

print cmp(a,d)

//返回

0

1

-1

Copy after login

There is no cmp function in the Python3.X version. If you need to implement comparison Function requires the introduction of the operator module, which is suitable for any object. The methods included are:

1

2

3

4

5

6

7

8

9

10

11

12

operator.lt(a, b)

operator.le(a, b)

operator.eq(a, b)

operator.ne(a, b)

operator.ge(a, b)

operator.gt(a, b)

operator.__lt__(a, b)

operator.__le__(a, b)

operator.__eq__(a, b)

operator.__ne__(a, b)

operator.__ge__(a, b)

operator.__gt__(a, b)

Copy after login

Instance

1

2

3

4

5

>>> import operator

>>> operator.eq('hello', 'name');

False

>>> operator.eq('hello', 'hello');

True

Copy after login

Note: == can be used in python3 to compare two strings, and == in java represents equality with different meanings.

For more Python related technical articles, please visit the Python Tutorial column to learn!

The above is the detailed content of How to compare string sizes in python. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot Article Tags

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

How Do I Use Beautiful Soup to Parse HTML? How Do I Use Beautiful Soup to Parse HTML? Mar 10, 2025 pm 06:54 PM

How Do I Use Beautiful Soup to Parse HTML?

Image Filtering in Python Image Filtering in Python Mar 03, 2025 am 09:44 AM

Image Filtering in Python

How to Use Python to Find the Zipf Distribution of a Text File How to Use Python to Find the Zipf Distribution of a Text File Mar 05, 2025 am 09:58 AM

How to Use Python to Find the Zipf Distribution of a Text File

How to Work With PDF Documents Using Python How to Work With PDF Documents Using Python Mar 02, 2025 am 09:54 AM

How to Work With PDF Documents Using Python

How to Cache Using Redis in Django Applications How to Cache Using Redis in Django Applications Mar 02, 2025 am 10:10 AM

How to Cache Using Redis in Django Applications

How to Perform Deep Learning with TensorFlow or PyTorch? How to Perform Deep Learning with TensorFlow or PyTorch? Mar 10, 2025 pm 06:52 PM

How to Perform Deep Learning with TensorFlow or PyTorch?

How to Implement Your Own Data Structure in Python How to Implement Your Own Data Structure in Python Mar 03, 2025 am 09:28 AM

How to Implement Your Own Data Structure in Python

Introduction to Parallel and Concurrent Programming in Python Introduction to Parallel and Concurrent Programming in Python Mar 03, 2025 am 10:32 AM

Introduction to Parallel and Concurrent Programming in Python

See all articles