Happy journey of simple Python: input and output operations of Python basic syntax

Defonds 2020-11-13 04:52:41
happy journey simple python input

1. Print to console output

You can use print() Function to print or echo data to the console .

# How to Print to Console in Python
print("Hello World! Welcome to Python Examples.")

Execution and output :
 Print to console output .png
You can pass in a string , Or a number , Or any other data type .
At the end of the print, the line feed will be added automatically .

1.1. Print string to console

In this example, we simply print a string to the console output . Pass the string as an argument to print() function .

# Print String to Console
print("Hello World!")

Execution and output :
 Print string to console .png

1.2. Print numbers to console

Pass numbers as parameters to print() function .

# Print number to console

Execution and output :
 Print numbers to console .png

1.3. Print variables to console

We can provide multiple variables as parameters to print() function . They will print to the console by default with a single space as a separator .

# Print Variable to Console
x = "pi is"
y = 3.14
print(x, y)

Execution and output :
 Print variables to console .png

1.4. Print with a specific separator

You can pass a specific separator to sep Parameters .

# Python Print with a Specific Separator
x = "pi is"
y = 3.14
print(x, y, sep=" : ")

Execution and output :
 Print with a specific separator .png

1.5. Print at a specific end

stay Python in ,print() By default, the function uses the newline character as the end character . We can pass a specific terminator to end Parameter to override it .

# Python Print with a Specific End
print("Hello", end="-")
print("World", end=".\n")

Execution and output :
 Print at a specific end .png

2. The console reads numbers

You can use input() The function reads a number entered by the user in the console . actually Python3 It doesn't tell whether your input is a string or a number . Whatever you type in , It's all treated as a string .
To treat input as a number , It needs to be cast to an integer type .

# Read Number from Console
n = int(input("Type a number: "))

Execution and output :
 The console reads numbers .png
You can use some mathematical operations to see if it's a number .

# Check if it is a number by performing some arithmetic operations
n = int(input("Type a number: "))
print(n + 7)

Execution and output :
 Use some mathematical operations to check whether it is a number .png

3. The console reads strings

You can use input() Function reads a string from the console as input to your program .

# Read String from Console
inputStr = input("Enter a string: ")

Execution and output :
 The console reads strings .png
input() Function will return the string you entered in the console .

4. No line breaks between multiple prints

print() By default, the function uses a newline character as the end of the print , To be in Python If there is no line break between multiple printings , You can be right print() Functional end=’’ Parameter setting .
This example shows how to execute more than once print() Do not wrap .

# Print without new line
print("Hello", end='')
print(" World.", end='')
print(" Welcome to", end='')
print(" defonds.net")

Execution and output :
 No line breaks between multiple prints .png

Reference material


  1. 利用Python爬虫获取招聘网站职位信息
  2. Using Python crawler to obtain job information of recruitment website
  3. Several highly rated Python libraries arrow, jsonpath, psutil and tenacity are recommended
  4. Python装饰器
  5. Python实现LDAP认证
  6. Python decorator
  7. Implementing LDAP authentication with Python
  8. Vscode configures Python development environment!
  9. In Python, how dare you say you can't log module? ️
  10. 我收藏的有关Python的电子书和资料
  11. python 中 lambda的一些tips
  12. python中字典的一些tips
  13. python 用生成器生成斐波那契数列
  14. python脚本转pyc踩了个坑。。。
  15. My collection of e-books and materials about Python
  16. Some tips of lambda in Python
  17. Some tips of dictionary in Python
  18. Using Python generator to generate Fibonacci sequence
  19. The conversion of Python script to PyC stepped on a pit...
  20. Python游戏开发,pygame模块,Python实现扫雷小游戏
  21. Python game development, pyGame module, python implementation of minesweeping games
  22. Python实用工具,email模块,Python实现邮件远程控制自己电脑
  23. Python utility, email module, python realizes mail remote control of its own computer
  24. 毫无头绪的自学Python,你可能连门槛都摸不到!【最佳学习路线】
  25. Python读取二进制文件代码方法解析
  26. Python字典的实现原理
  27. Without a clue, you may not even touch the threshold【 Best learning route]
  28. Parsing method of Python reading binary file code
  29. Implementation principle of Python dictionary
  30. You must know the function of pandas to parse JSON data - JSON_ normalize()
  31. Python实用案例,私人定制,Python自动化生成爱豆专属2021日历
  32. Python practical case, private customization, python automatic generation of Adu exclusive 2021 calendar
  33. 《Python实例》震惊了,用Python这么简单实现了聊天系统的脏话,广告检测
  34. "Python instance" was shocked and realized the dirty words and advertisement detection of the chat system in Python
  35. Convolutional neural network processing sequence for Python deep learning
  36. Python data structure and algorithm (1) -- enum type enum
  37. 超全大厂算法岗百问百答(推荐系统/机器学习/深度学习/C++/Spark/python)
  38. 【Python进阶】你真的明白NumPy中的ndarray吗?
  39. All questions and answers for algorithm posts of super large factories (recommended system / machine learning / deep learning / C + + / spark / Python)
  40. [advanced Python] do you really understand ndarray in numpy?
  41. 【Python进阶】Python进阶专栏栏主自述:不忘初心,砥砺前行
  42. [advanced Python] Python advanced column main readme: never forget the original intention and forge ahead
  43. python垃圾回收和缓存管理
  44. java调用Python程序
  45. java调用Python程序
  46. Python常用函数有哪些?Python基础入门课程
  47. Python garbage collection and cache management
  48. Java calling Python program
  49. Java calling Python program
  50. What functions are commonly used in Python? Introduction to Python Basics
  51. Python basic knowledge
  52. Anaconda5.2 安装 Python 库(MySQLdb)的方法
  53. Python实现对脑电数据情绪分析
  54. Anaconda 5.2 method of installing Python Library (mysqldb)
  55. Python implements emotion analysis of EEG data
  56. Master some advanced usage of Python in 30 seconds, which makes others envy it
  57. python爬取百度图片并对图片做一系列处理
  58. Python crawls Baidu pictures and does a series of processing on them
  59. python链接mysql数据库
  60. Python link MySQL database