function?[sysx0strtssimStateCompliance]?=sintsf（txuflagtheontheovtheoff）
switch?flag

??%%%%%%%%%%%%%%%%%%
??%?Initialization?%
??%%%%%%%%%%%%%%%%%%
??case?0
????[sysx0strtssimStateCompliance]=mdlInitializeSizes;

??%%%%%%%%%%%%%%%
??%?Derivatives?%
??%%%%%%%%%%%%%%%
??case?1
????sys=mdlDerivatives（txu）;

??%%%%%%%%%%
??%?Update?%
??%%%%%%%%%%
??case?2
????sys=mdlUpdate（txu）;

??%%%%%%%%%%%
??%?Outputs?%
??%%%%%%%%%%%
??case?3
????sys=mdlOutputs（txutheontheovtheoff）;

??%%%%%%%%%%%%%%%%%%%%%%%
??%?GetTimeOfNextVarHit?%
??%%%%%%%%%%%%%%%%%%%%%%%
??case?4
????sys=mdlGetTimeOfNextVarHit（txu）;

??%%%%%%%%%%%%%
??%?Terminate?%
??%%%%%%%%%%%%%
??case?9
????sys=mdlTerminate（txu）;

??%%%%%%%%%%%%%%%%%%%%
??%?Unexpected?flags?%
??%%%%%%%%%%%%%%%%%%%%
??otherwise
????DAStudio.error（‘Simulink:blocks:unhandledFlag‘?num2str（flag））;

end

%?end?sfuntmpl

%
%=============================================================================
%?mdlInitializeSizes
%?Return?the?sizes?initial?conditions?and?sample?times?for?the?S-function.
%=============================================================================
%
function?[sysx0strtssimStateCompliance]=mdlInitializeSizes

%
%?call?simsizes?for?a?sizes?structure?fill?it?in?and?convert?it?to?a
%?sizes?array.
%
%?Note?that?in?this?example?the?values?are?hard?coded.??This?is?not?a
%?recommended?practice?as?the?characteristics?of?the?block?are?typically
%?defined?by?the?S-function?parameters.
%
sizes?=?simsizes;

sizes.NumContStates??=?0;
sizes.NumDiscStates??=?0;
sizes.NumOutputs?????=?1;
sizes.NumInputs??????=?1;
sizes.DirFeedthrough?=?1;
sizes.NumSampleTimes?=?1;???%?at?least?one?sample?time?is?needed

sys?=?simsizes（sizes）;

%
%?initialize?the?initial?conditions
%
x0??=?[];

%
%?str?is?always?an?empty?matrix
%
str?=?[];

%
%?initialize?the?array?of?sample?times
%
ts??=?[0?0];

%?Specify?the?block?simStateCompliance.?The?allowed?values?are:
%????‘UnknownSimState‘?%????‘DefaultSimState‘?%????‘HasNoSimState‘???%????‘DisallowSimState‘?simStateCompliance?=?‘UnknownSimState‘;

%?end?mdlInitializeSizes

%
%=============================================================================
%?mdlDerivatives
%?Return?the?derivatives?for?the?continuous?states.
%=============================================================================
%
function?sys=mdlDerivatives（txu）

sys?=?[];

%?end?mdlDerivatives

%
%=============================================================================
%?mdlUpdate
%?Handle?discrete?state?updates?sample?time?hits?and?major?time?step
%?requirements.
%=============================================================================
%
function?sys=mdlUpdate（txu）

sys?=?[];

%?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????4562??2013-08-05?10:09??sintsf.m

?????文件?????125668??2013-11-10?23:14??TSFsin.mdl

-----------?---------??----------?-----??----

???????????????130230????????????????????2