vue的常用組件操作方法應用分析

<el-carousel :interval="3000" type="card" height="200px" class="common-mt-md">
 <el-carousel-item v-for="item in movieArr" :key="item.id" class="text-center">
 <img v-bind:src="item.images.small" alt="電影封面" class="ticket-index-movie-img">
 </el-carousel-item>// 實際顯示的內容-跑馬燈
 <div v-if="!movieArr.length" class="ticket-index-movie-loading">
 <span class="el-icon-loading "></span>
 </div>// 當 movirArr的數組為空的時候，做出的預加載 loading 
</el-carousel>

<p v-if="!multipleSelection.length">
 <el-button type="success" round disabled>導出</el-button>
</p><!-- 不能點， 判斷數組為空 -->
<p v-else>
 <el-button type="success" round >導出</el-button>
</p><!-- 可以點， 判斷數組為不為空 -->

<el-form-item label="時間" prop="name">
 <el-input v-model="ruleForm.name"></el-input>//綁定模型，檢測輸入的格式
 <span class="el-icon-plus ticket-manage-timeinput" @click="addTime(this)"></span>//綁定方法，增加dom的操作
 </el-form-item> 
<el-form-item label="時間" prop="name" v-for="item in timeArr" :key='item.id'> //timeArr數組與數據就渲染下面的dom，沒有就不顯示
　　<el-input v-model="ruleForm.name"></el-input> 
　　<span class="el-icon-minus ticket-manage-timeinput" @click="minusTime(this)"></span> 
</el-form-item>

 timeInputString: '<el-input v-model="ruleForm.name"></el-input><span class="el-icon-minus"></span>'

 addTime () {
 this.timeArr.push('str')
 },
 minusTime () {
 this.timeArr.shift('str')
 }

<li v-for="section in item.sections" :key='section.id' @click="hideParMask" :class="getSectionId(section.id)">
 <router-link :to="{ name: 'learning', params: { sectionId: section.id}, query: { courseId: courseId}}" >
 <span>{{item.orderInCourse}}.{{section.sectionNumber}}</span>
 <span>{{section.name}}</span>
 </router-link>
</li>

<v-child :courseId="courseId" v-on:receiveTitle="receiveTitle"></v-child>

methods: {
 receiveTitle (name) {
 this.titleName = name; // titleName 就是 **@課程
 }
}

<course-tab :courseList = courseList ></course-tab>

courseList().then(res => {
 this.courseList = res.data.courses;
 }).catch( err => {
 console.log(err)
});

 props: {
 courseList: {
 type: Array
 }
 }

{
 path: '*',
 redirect: '/'
}

router.push({ path: 'login-regist' }) // 如果這樣寫的話，會尋找路由最近的 / 然后在后面直接拼接login-regist；
為了防止在多級嵌套路由里面出現bug ,應該寫全路由的全部信息，包括 /
router.push({ path: '/login-regist' }) 

<div class="img" :style="{background: 'url(' + item.logoFileURL + ')'}"></div> 

data () {
 return {
 scrolled: false，
　　　　show: true
 }
},
methods: {
 handleScroll () {
 this.scrolled = window.scrollY > 0;
 if (this.scrolled) {
 this.show = false;
 }
 }
 },
 mounted () {
 window.addEventListener('scroll', this.handleScroll);
 }

@input="search"，

<el-input v-model="input" @keyup.enter.native="add" placeholder="請輸入內容" ></el-input>