python select模块.select实现非阻塞socket,Popen等(特别在 Unix 下，它还可以用于管道)
link: http://blog.sina.com.cn/s/blog_76a0e17a0100q762.html
select — Waiting for I/O completion
This module provides access to the select() and poll() functions available in most operating systems. Note that on?
Windows
, it only works for sockets; on other operating systems, it also works for other file types (in particular, on Unix, it works on pipes). It cannot be u
sed
?
on regular files to determine whether a file has grown since it was last read.
这个模块提供的 select() 和 poll() 方法可用于大部分
操作系统
。注意：在?
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