preserve.hlp

是一个经济学管理应用软件 很难找的 但是经济学学生又必须用到

{smcl}
{* *! version 1.0.0  29jun2005}{...}
{cmd:help preserve}, {cmd:help restore}
{hline}

{title:Title}

{p2colset 5 21 23 2}{...}
{p2col :{hi:[P] preserve} {hline 2}}Preserve and restore data{p_end}
{p2colreset}{...}


{title:Title}

{p 8 17 2}{cmd:preserve} [{cmd:,} {cmdab:ch:anged}]

{p 8 16 2}{cmd:restore} [{cmd:,} {cmd:not} {cmdab:pres:erve}]


{title:Description}

{pstd}
{cmd:preserve} preserves the data, guaranteeing that data will be restored
after program termination.

{pstd}
{cmd:restore} forces a restore of the data now.


{title:Options}

{phang}{cmd:changed} instructs {cmd:preserve} to preserve only the
flag indicating that the data has changed since the last save.  Use of this
option is strongly discouraged.

{phang}{cmd:not} instructs {cmd:restore} to cancel the previous
{cmd:preserve}.

{phang}{cmd:preserve} instructs {cmd:restore} to restore the data now, but not
to cancel the restoration of the data again at program conclusion.  If
{cmd:preserve} is not specified, the scheduled restoration at program
conclusion is canceled.


{title:Also see}

{psee}
Manual:  {bf:[P] preserve}

{psee}
Online:  {help tempfile}
{p_end}