from __future__ import print_function 用法 from __future__ import print_function 用法

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from __future__ import print_function 用法

March 6, 2018 16:38:48 xiaotao_1 Reads: 23034

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        <p>　　在开头加上<code>from __future__ import print_function</code>这句之后，即使在python2.X，使用print就得像python3.X那样加括号使用。python2.X中print不需要括号，而在python3.X中则需要。</p>

# python2.7
print "Hello world"

# python3
print("Hello world")
  
  

  
  

   
   
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　　If there is a new feature in a version, but this feature is not compatible with the current version and used, it is in this version is not the language standard, so if I want to use, then you need from future import module .

　　Other
　　　　from __future__ import divisionexamples:
　　　　from __future__ import absolute_import,
　　　　from __future__ import with_statement, . And so
　　add these, if your python version python2.X, so you have to use these functions in accordance with python3.X.

      版权声明：本文为博主原创文章，未经博主允许不得转载。          https://blog.csdn.net/xiaotao_1/article/details/79460365        </div>
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        <p>　　在开头加上<code>from __future__ import print_function</code>这句之后，即使在python2.X，使用print就得像python3.X那样加括号使用。python2.X中print不需要括号，而在python3.X中则需要。</p>