Python print() Function

Python3 内置函数Python3 Built-in Functions

Description

print()The method is used for printing output and is the most common function.

In Python 3.3, the flush keyword parameter was added.

print is a function in Python 3.x, but in Python 2.x it is not a function; it is just a keyword.

Syntax

The following is the syntax of the print() method:

print(*objects, sep=' ', end='\n', file=sys.stdout, flush=False)

Parameters

  • objects -- Plural, meaning that multiple objects can be output at one time. When outputting multiple objects, they need to be separated by ,.
  • sep -- Used to separate multiple objects; the default value is a space.
  • end -- Used to set what to end with. The default value is the newline character \n, which can be changed to other strings.
  • file -- The file object to be written to.
  • flush -- Whether the output is buffered usually depends on file, but if the flush keyword parameter is True, the stream will be forcibly flushed.

Return Value

None.

Examples

The following shows examples of using the print function:

Test on Python3

>>>print(1) 1 >>> print("Hello World") Hello World >>> a = 1 >>> b = 'example' >>> print(a,b) 1 example >>> print("aaa""bbb") aaabbb >>> print("aaa","bbb") aaa bbb >>> >>> print("www","example","com",sep=".") # Set the separator www.example.com

Use the flush parameter to create a Loading effect:

Examples

import time

print("---EXAMPLE EXAMPLE: Loading effect---")

print("Loading",end = "")
for i in range(20):
    print(".",end = '',flush = True)
    time.sleep(0.5)

The effect is as shown in the figure below:

For more information, see:Python3 print Function Usage Summary

Python3 内置函数Python3 Built-in Functions

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