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讲解Python中fileno()方法的使用

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Release: 2016-06-06 11:17:05
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 fileno()方法返回所使用的底层实现,要求从操作系统I/O操作的整数文件描述符。
语法

以下是fileno()方法的语法:

fileObject.fileno(); 

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参数

  • NA

返回值

此方法返回整数文件描述符。
例子

下面的例子显示fileno()方法的使用。

#!/usr/bin/python

# Open a file
fo = open("foo.txt", "wb")
print "Name of the file: ", fo.name

fid = fo.fileno()
print "File Descriptor: ", fid

# Close opend file
fo.close()

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当我们运行上面的程序,它会产生以下结果:

Name of the file: foo.txt
File Descriptor: 3

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