const{createApp}=Vue const{createVuetify,useGoTo,useDisplay}=Vuetify var data={alert:{show:false,color:'success',text:'',timeout:0,},theme:{dark:false,},nav:{showDrawer:false,showTOC:true,tocPanel:0,tab:'account',post:{discussionId:26,currentPage:1,targetPage:1,total:1,anchor:0,goToOptions:{container:null,duration:0,easing:'easeInOutCubic',offset:-100,},worker:null,task:[],active:[],apiLock:[],originLike:new Map([]),},related:{block:1,}},search:{width:80,text:null,loading:false,},tags:[{id:17,url:'/t/2506260162497c407b741e087f02',name:'Simulink基础教程',color:'#607D8B',icon:'mdi-book-open',},{id:30,url:'/t/57331c0262497c427c7412017d21',name:'Constant模块',color:'#FF6F00',icon:'mdi-alpha-c-box-outline',},],posts:[{id:26,num:0,uid:1,content:'\u003Ch2\u003ESimulink Constant模块赋值\u003C/h2\u003E\u003Ch3\u003E直接赋值\u003C/h3\u003E\u003Ch4\u003E赋值为标量\u003C/h4\u003E\u003Cp\u003E例如:1、1.2、pi\u003C/p\u003E\u003Ch4\u003E赋值为矢量(数组)\u003C/h4\u003E\u003Cp\u003E例如:[1,2,3]、[1;2;3]\u003C/p\u003E\u003Ch4\u003E赋值为矩阵\u003C/h4\u003E\u003Cp\u003E例如:[1,2,3;4,5,6]\u003C/p\u003E\u003Ch3\u003E通过表达式赋值\u003C/h3\u003E\u003Cp\u003E例如:1+2+3、2*pi、m*9.8\u003C/p\u003E\u003Ch3\u003E绑定到变量或对象\u003C/h3\u003E\u003Cp\u003E例如:g、kp、ki、vehicle.EngSpd\u003C/p\u003E\u003Cp\u003E上述变量或存储类对象的可通过以下几种方式赋值:\u003C/p\u003E\u003Ch4\u003E基础工作区\u003C/h4\u003E\u003Ch4\u003E数组字典\u003C/h4\u003E\u003Cp\u003E通常通过.m脚本统一管理和进行数据初始化\u003C/p\u003E\u003Ch4\u003E回调函数\u003C/h4\u003E\u003Cp\u003E直接在回调函数中赋值,例如Simulink Constant模块常量值绑定到变量a,在模块属性-回调-InitFcn中,定义a\u003D123\u003C/p\u003E\u003Cp\u003E\u003Cbr\u003E\u003C/p\u003E\u003Ch2\u003ESimulink Constant模块输出数据类型\u003C/h2\u003E\u003Cp\u003ESimulink Constant模块默认的数据类型为Double,在仿真时可以保证精度\u003C/p\u003E\u003Cp\u003E但对于MBD开发中用于生成代码的应用场景下,Double类型会降低运算效率\u003C/p\u003E\u003Cp\u003E我们在建模时,大部分运算模块的输出数据类型通常会使用默认选项“Inherit: Inherit via internal rule”,也就是由Simulink内部规则自动决定数据类型,当有Double类型输入时,会导致后续的信号数据类型也使用Double,从而引起连锁效应,进一步放大对运算效率的影响\u003C/p\u003E\u003Cp\u003E因此需要明确定义Simulink Constant模块的输出数据类型\u003C/p\u003E\u003Ch3\u003E在信号属性中定义输出数据类型\u003C/h3\u003E\u003Cp\u003E我们可以双击Constant模块,在模块参数-信号属性中定义输出数据类型\u003C/p\u003E\u003Cp\u003E可以选择具体的数据类型,例如uint8、uint16、fixdt(0,16,0.01)\u003C/p\u003E\u003Cp\u003E可以选择“Inherit: Inherit via back propagation”,继承后端反向传播的数据类型\u003C/p\u003E\u003Ch3\u003E通过类型函数定义输出数据类型\u003C/h3\u003E\u003Cp\u003E在直接赋值或通过表达式赋值时,外层添加类型定义函数。\u003C/p\u003E\u003Cp\u003E例如:unit8(3),single(2*pi)\u003C/p\u003E',ipRegion:'',updatedByUid:1,createdAt:'2025-04-19 15:37:10',updatedAt:'2025-04-19 15:38:30',mentionNum:0,mentionedBy:[],mentionUsers:[],likeUsers:[],},],usersMap:new Map([[1,{uid:1,url:'/u/5b180a1c62497c417c6940494325070c',avatar:'/a/5b180a1c62497c417c6940494325070c',username:'Simulink',}],]),related:[{title:'Simulink Sum of Elements,Simulink Sum of Elements模块',url:'/d/041d2b3162497c417c69415404660778462a0027',},{title:'Simulink Sum模块上下翻转,Simulink Sum模块输入的位置,Simulink Sum里面加减号位置',url:'/d/0d60273e62497c417c6941540466067824325920',},{title:'Simulink Sum方向,Simulink Sum模块怎么旋转,Simulink Sum模块怎么改变方向',url:'/d/0121380562497c417c694154046605781e4e6432',},{title:'Simulink Sum 模块简介',url:'/d/59030a0a62497c417c694154046604783539463e',},{title:'Simulink Gain模块旋转,Simulink Gain怎么变方向',url:'/d/26172f0b62497c417c69415404610d7818177135',},{title:'Simulink Unary Minus模块简介',url:'/d/5b18031f62497c417c69415404610378033a5f36',},{title:'Simulink Gain模块作用,Simulink Gain模块参数设置,Simulink Gain模块设置变量,Simulink Gain模块怎么设置kp',url:'/d/161f343c62497c417c694154046101782d2e663d',},{title:'Simulink Gain模块简介',url:'/d/013d094262497c417c694154046100780e0f645d',},{title:'Simulink Divide by zero error occurred,Simulink Divide 出现除以零,Simulink division by zero处理',url:'/d/2b39273e62497c417c694154046107784d405b2f',},{title:'Simulink Product模块作用,Simulink Product怎么用,Simulink Product用法,Simulink Product模块用法',url:'/d/37045c2262497c417c69415404610478363b7f34',},{title:'Simulink Product 模块简介',url:'/d/3518091962497c417c69415404600d78364a6e37',},{title:'Simulink Data Type Conversion模块的2个典型应用场景',url:'/d/3927263c62497c417c69415404600c781c345110',},{title:'Simulink Data Type Conversion模块简介',url:'/d/5e060b2462497c417c69415404600378072e551d',},{title:'Simulink Constant -c-,Simulink Constant模块显示为 -C-',url:'/d/0b60001c62497c417c69415404600178112a5654',},{title:'Simulink Constant模块简介',url:'/d/391f041962497c417c6941540460007804156536',},{title:'Simulink From怎么找Goto',url:'/d/181a224162497c417c69415404600578324c0434',},{title:'Simulink Goto模块颜色,Simulink Goto高亮,Simulink Goto品红色阴影边框、青色背景怎么恢复颜色',url:'/d/1835252862497c417c694154046004782d4c710e',},{title:'Simulink Goto Tag Visibility模块,Simulink Goto模块 作用域,Simulink Goto模块 local',url:'/d/1c2b581362497c417c69415404630d782c094f16',},{title:'Simulink Goto怎么用,Simulink Goto模块设置,Simulink Goto模块怎么用',url:'/d/0828581962497c417c694154046303784601642b',},{title:'Simulink Inport代码生成,Simulink Inport模块怎么设置全局变量',url:'/d/5a663b2462497c417c6941540463017803175057',},],} const App={setup(){const goTo=useGoTo() const{mdAndUp}=useDisplay() return{goTo,mdAndUp}},data(){return data;},mounted(){const themeDark=localStorage.getItem("themeDark") if(themeDark!==null){this.theme.dark=JSON.parse(themeDark)} if(this.nav.post.total>(this.nav.post.currentPage-1)*100+20){let moreLen=100 if(this.nav.post.total({id:null,num:(this.nav.post.currentPage-1)*100+v,uid:null,content:null,ipRegion:null,updatedByUid:null,createdAt:null,updatedAt:null,mentionNum:null,mentionedBy:null,mentionUsers:null,likeUsers:null,})) this.posts.push(...morePosts.slice(20))} this.workerStart() const hash=window.location.hash const match=hash.match(/#(\d+)/) if(match){const n=parseInt(match[1],10) if(n>=(this.nav.post.currentPage-1)*100&&n{this.jumpTo(n)})}} this.$nextTick(()=>{this.addHeadingIds() tocbot.init({tocSelector:'.toc',contentSelector:'#post-content-0',headingSelector:'h2, h3, h4',headingsOffset:100,scrollSmoothOffset:-100,scrollSmooth:true,collapseDepth:6,onClick:function(e){setTimeout(()=>{history.replaceState(null,'',window.location.pathname+window.location.search)},0)},}) tocbot.refresh()});},beforeUnmount(){this.workerStop() if(this.quill){this.quill.destroy() this.quill=null}},computed:{dposts(){return this.posts.slice(20);},},created(){},methods:{successAlert(msg){this.alert={show:true,color:'success',text:msg,timeout:1500,}},failureAlert(msg){this.alert={show:true,color:'error',text:msg,timeout:5000,}},flipThemeDark(){this.theme.dark=!this.theme.dark localStorage.setItem("themeDark",JSON.stringify(this.theme.dark))},toSearch(){if(!this.search.text){this.failureAlert('搜索词不能为空') return} let keywords=this.search.text.trim() if(keywords.length<1){this.failureAlert('搜索词不能为空') return} if(keywords.length>100){this.failureAlert('搜索词过长') return} this.doSearch(keywords)},toReg(){window.location.href="/reg"},toLogin(){window.location.href="/login"},toPage(){let url=window.location.href url=url.replace(/(\/\d+)?(#[0-9]+)?$/,this.nav.post.targetPage>1?`/${this.nav.post.targetPage}`:'') window.location.href=url},toLoadRelated({done}){if(this.my&&this.my.uid){this.apiLoadRelated({done})}else{done('ok')}},workerStart(){this.nav.post.worker=setInterval(()=>{this.workerLoad()},500);},workerStop(){if(this.nav.post.worker){clearInterval(this.nav.post.worker);this.nav.post.worker=null;}},async jumpTo(num){const page=Math.floor(num/100)+1 const i=num-(page-1)*100 if(page===this.nav.post.currentPage){this.goTo("#post-"+num,this.nav.post.goToOptions) if(!this.posts[i].id){const block=Math.floor(num/20)+1 this.nav.post.apiLock[block]=true await this.apiLoadPosts(block) this.$nextTick(()=>{this.goTo("#post-"+num,this.nav.post.goToOptions)})}}else{let url=window.location.href url=url.replace(/(\/\d+)?(#[0-9]+)?$/,page>1?`/${page}`:'') url=url+"#"+num window.location.href=url}},postIntersect(num){return(isIntersecting,entries,observer)=>{if(isIntersecting){this.nav.post.task.push(num) this.nav.post.active.push(num) this.nav.post.active=this.nav.post.active.filter(item=>Math.abs(item-num)<=5) this.nav.post.active.sort((a,b)=>a-b)}else{this.nav.post.active=this.nav.post.active.filter(item=>item!==num)} if(this.nav.post.active[0]){this.nav.post.anchor=this.nav.post.active[0]}else{this.nav.post.anchor=0}}},async apiLoadPosts(block){try{const response=await axios.post('/fapi/v1/post/block/'+block,{discussionId:this.nav.post.discussionId,}) if(response.data.code===0){response.data.data.posts.forEach(post=>{const i=post.num%100 Object.assign(this.posts[i],post)}) response.data.data.users.forEach(user=>{this.usersMap.set(user.uid,user)})}else{this.failureAlert('回帖数据加载失败: '+response.data.msg)}}catch(error){this.failureAlert('回帖数据加载失败: '+error)} this.nav.post.apiLock[block]=false},workerLoad(){while(this.nav.post.task.length){const num=this.nav.post.task.pop() const i=num-(this.nav.post.currentPage-1)*100 if(!this.posts[i].id){const block=Math.floor(num/20)+1 if(!this.nav.post.apiLock[block]){this.nav.post.apiLock[block]=true this.apiLoadPosts(block)}}}},getTimeInfo(t){if(!t){return ""} const now=new Date();const then=new Date(t);const diff=now-then;const minute=60*1000;const hour=minute*60;const day=hour*24;const month=day*30;const year=month*12;if(diffpost.num===num) if(!post){return "#"+num} const uid=post.uid const username=this.usersMap.get(uid)?.username if(!username){return "#"+num} return username},getUsernameByPostId(id){const post=this.posts.find(post=>post.id===id) if(!post){return "#"+this.getPostNumByPostId(id)} const uid=post.uid const username=this.usersMap.get(uid).username if(!username){return "#"+this.getPostNumByPostId(id)} return username},getPostNumByPostId(id){const post=this.posts.find(post=>post.id===id) return post.num},getPostById(id){const post=this.posts.find(post=>post.id===id) return post},getPostByNum(num){const post=this.posts.find(post=>post.num===num) return post},getAvatarByUid(uid){const avatar=this.usersMap.get(uid)?.avatar if(!avatar){return this.getRandomAvatar()} return avatar},getAvatarByPostNum(num){const post=this.posts.find(post=>post.num===num) if(!post){return this.getRandomAvatar()} const uid=post.uid return this.getAvatarByUid(uid)},getRandomAvatar(){const num=Math.floor(Math.random()*100) return "https://randomuser.me/api/portraits/men/"+num+".jpg"},getUrlByUid(uid){const url=this.usersMap.get(uid)?.url if(!url){return ""} return url},getTextByPostNum(num){const post=this.posts.find(post=>post.num===num) if(!post||!post.content){return '点击跳转到#'+num+'查看'} const parser=new DOMParser() const doc=parser.parseFromString(post.content,'text/html') const text=doc.body.textContent||'' return text.slice(0,100)},addHeadingIds(){const content=document.getElementById('post-content-0') if(!content){this.nav.showTOC=false return} const headings=content.querySelectorAll('h2, h3, h4') headings.forEach((heading,index)=>{if(!heading.id){heading.id=`toc-nav-${index}`}}) if(headings.length==0){this.nav.showTOC=false}},async doSearch(keywords){this.search.loading=true try{const response=await axios.post('/fapi/v1/search',{keywords:keywords,}) if(response.data.code===0){if(response.data.data.hash&&response.data.data.hash.length===32){window.location.href="/s/"+response.data.data.hash}else{this.failureAlert('搜索失败: 搜索服务异常')}}else{this.failureAlert('搜索失败: '+response.data.msg)}}catch(error){this.failureAlert('搜索失败: '+error)} this.search.loading=false},debounce(fn,delay){let timer=null return function(...args){if(timer)clearTimeout(timer) timer=setTimeout(()=>{fn.apply(this,args)},delay);};},},watch:{'nav.post.targetPage':{handler:async function(newV,oldV){this.toPage()},immediate:false},},} const vuetify=createVuetify({defaults:{global:{ripple:true,},},}) const app=createApp(App) app.use(vuetify).mount("#app")