function?pitch_dmc（block）
setup（block）;

function?setup（block）

block.NumDialogPrms?=?12;
%%?Register?number?of?input?and?output?ports
block.NumInputPorts??=?2;
block.NumOutputPorts?=?1;

%%?Setup?functional?port?properties?to?dynamically
%%?inherited.
block.SetPreCompInpPortInfoToDynamic;
block.SetPreCompOutPortInfoToDynamic;

block.InputPort（1）.Dimensions????????=?1;
block.InputPort（1）.DatatypeID????????=?0;??%?double
block.InputPort（1）.Complexity????????=?‘Real‘;
block.InputPort（1）.DirectFeedthrough?=?false;

block.InputPort（2）.Dimensions????????=?1;
block.InputPort（2）.DatatypeID????????=?0;??%?double
block.InputPort（2）.Complexity????????=?‘Real‘;
block.InputPort（2）.DirectFeedthrough?=?false;

block.OutputPort（1）.Dimensions???????=?1;??%這里二維變3維
block.OutputPort（1）.DatatypeID????????=?0;??%?double
block.OutputPort（1）.Complexity????????=?‘Real‘;

%%?Set?block?sample?time?to?variable?sample?time
sample=block.DialogPrm（1）.Data;??%%?即?Ts
block.SampleTimes?=?[sample?0];?

%%?Set?the?block?simStateCompliance?to?default?（i.e.?same?as?a?built-in?block）
block.SimStateCompliance?=?‘DefaultSimState‘;

%%?Register?methods
block.RegBlockMethod（‘SetInputPortSamplingMode‘?@SetInputPortSamplingMode）;?%%?輸入/出端口的屬性，說(shuō)明端口是否工作在基于采樣（或基于幀）的模式
block.RegBlockMethod（‘PostPropagationSetup‘????@PostPropagationSetup）;??????%%?設(shè)置工作區(qū)域和狀態(tài)變量。???可以在這里注冊(cè)運(yùn)行方法
%?block.RegBlockMethod（‘InitializeConditions‘????@InitConditions）;%%?初始化;%%若仿真開(kāi)始前及仿真過(guò)程中需要多次初始化，則使用該回調(diào)。該回調(diào)對(duì)連續(xù)狀態(tài)ContStates和/或Dwork向量賦初始值、配置內(nèi)存等。
%?%?寫(xiě)成start好像比較好？但是試了一下，結(jié)果一樣
block.RegBlockMethod（‘Start‘?@Start）;?%%?若僅在仿真開(kāi)始前需要初始化，則使用該回調(diào)。
block.RegBlockMethod（‘Outputs‘?????????????????@Output）;??%%??生成輸出塊
block.RegBlockMethod（‘Update‘??????????????????@Update）;??%%??更新

%?function?SetInputPortSamplingMode（block?port?mode）?%%?似乎與block.SampleTimes?=?[sample?0]重復(fù)。?試過(guò)，單輸出可以刪除。多輸出不可以。
%?
%?block.InputPort（port）.SamplingMode?=?mode;
%?
%?for?i?=?1?:?block.NumOutputPorts
%?????block.OutputPort（i）.SamplingMode?=?mode;
%?end

function?PostPropagationSetup（block）

%%?Setup?Dwork
block.NumDworks?=?1;
block.Dwork（1）.Name?=?‘control_u‘;???%?下一次計(jì)算要用到，所以要設(shè)置為狀態(tài)向量
block.Dwork（1）.Dimensions??????=?1;???%這里2維度變3維
block.Dwork（1）.DatatypeID??????=?0;???%double；
block.Dwork（1）.Complexity??