function?[sysx0strtssimStateCompliance]?=preamblegen（txuflagrx_pfrx_NCSrrx_lrsnrx_NCSc）
%SFUNTMPL?General?M-file?S-function?template
%???The?general?form?of?an?M-File?S-function?syntax?is:
%???????[SYSX0STRTSSIMSTATECOMPLIANCE]?=?SFUNC（TXUFLAGP1...Pn）
%
%???What?is?returned?by?SFUNC?at?a?given?point?in?time?T?depends?on?the
%???value?of?the?FLAG?the?current?state?vector?X?and?the?current
%???input?vector?U.
%
%???FLAG???RESULT?????????????DEscriptION
%???-----??------?????????????--------------------------------------------
%???0??????[SIZESX0STRTS]??Initialization?return?system?sizes?in?SYS
%?????????????????????????????initial?state?in?X0?state?ordering?strings
%?????????????????????????????in?STR?and?sample?times?in?TS.
%???1??????DX?????????????????Return?continuous?state?derivatives?in?SYS.
%???2??????DS?????????????????Update?discrete?states?SYS?=?X（n+1）
%???3??????Y??????????????????Return?outputs?in?SYS.
%???4??????TNEXT??????????????Return?next?time?hit?for?variable?step?sample
%?????????????????????????????time?in?SYS.
%???5?????????????????????????Reserved?for?future?（root?finding）.
%???9??????[]?????????????????Termination?perform?any?cleanup?SYS=[].
%
%
%???The?state?vectors?X?and?X0?consists?of?continuous?states?followed
%???by?discrete?states.
%
%???Optional?parameters?P1...Pn?can?be?provided?to?the?S-function?and
%???used?during?any?FLAG?operation.
%
%???When?SFUNC?is?called?with?FLAG?=?0?the?following?information
%???should?be?returned:
%
%??????SYS（1）?=?Number?of?continuous?states.
%??????SYS（2）?=?Number?of?discrete?states.
%??????SYS（3）?=?Number?of?outputs.
%??????SYS（4）?=?Number?of?inputs.
%???????????????Any?of?the?first?four?elements?in?SYS?can?be?specified
%???????????????as?-1?indicating?that?they?are?dynamically?sized.?The
%???????????????actual?length?for?all?other?flags?will?be?equal?to?the
%???????????????length?of?the?input?U.
%??????SYS（5）?=?Reserved?for?root?finding.?Must?be?zero.
%??????SYS（6）?=?Direct?feedthrough?flag?（1=yes?0=no）.?The?s-function
%???????????????has?direct?feedthrough?if?U?is?used?during?the?FLAG=3
%???????????????call.?Setting?this?to?0?is?akin?to?making?a?promise?that
%???????????????U?will?not?be?used?during?FLAG=3.?If?you?break?the?promise
%???????????????then?unpredictable?results?will?occur.
%??????SYS（7）?=?Number?of?sample?times.?This?is?the?number?of?rows?in?TS.
%
%
%??????X0?????=?Initial?state?conditions?or?[]?if?no?states.
%
%??????STR????=?State?ordering?strings?which?is?generally?specified?as?[].
%
%??????TS?????=?An?m-by-2?matrix?containing?the?sample?time
%???????????????（period?offset）?information.?Where?m?=?number?of?sample
%???????????????times.?The?ordering?of?the?sample?times?must?be:
%
%???????????????TS?=?[0??????0??????:?Continuous?sample?time.
%?????????????????????0??????1??????:?Continuous?but?fixed?in?minor?step
%??????????????????????????????????????sample?time.
%??