pop函数用法

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use

programming

育龙网 WWW.CHINA-B.C0M 2009年06月12日 来源：互联网

育龙网核心提示： use

====================================================================from: NAME

- initiate pipe streams t

use

====================================================================

from:

NAME

- initiate pipe streams to or from a process

SYNOPSIS

#include

FILE

;

DESCRIPTION

The

function executes the command specified by the stringcommand.It creates a pipe between the calling program and the executed command， andreturns a pointer to a stream that can be used to either read from or write tothe pipe.

If the implementation supports the referenced XCU specification， the environment of theexecuted command will be as if a child process were created within the

call usingfork，and the child invoked theshutility using the call:

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