<template>
  <div class="demo">
    <h1>{{ msg}}</h1>
    <h2>學(xué)生姓名：{{name}}</h2>
    <h2>學(xué)生性別：{{sex}}</h2>
    <h2>學(xué)生的年齡：{{myage+1}}</h2>
    <button @click="changeAge">點我修改數(shù)據(jù)</button>
  </div>
</template>

<script>
  export default {
    name: 'Student',
    data() {
      return {
        msg: '王者愛好者',
        myage:this.age
      }
    },
    methods: {
      changeAge(){
       this.myage=24
      }
    },
    //簡單接收
   // props:['name','age','sex']


    //接收的同時對數(shù)據(jù)進行類型的限制
    //  props:{
    //    name:String,
    //    age:Number,
    //    sex:String,
    //  }

//接收數(shù)據(jù)的同時對數(shù)據(jù)：進行類型的限定+默認值的指定+必要性的限制
  props: {
      name: {
        type: String, //name的類型
        required: true, //name是必要的
      },
      age: {
        type: Number, 
       default:22
      },
      sex: {
        type: String, 
        required: true
      }
 }

  }
</script>

<template>
  <div>
    <Student name="張三" sex="男" :myage="20"/>
  </div>
</template>

<script>
  //引入Student組件
  import Student  from './components/Student.vue'
  export default {
    name: 'App',
    components: {
     Student
    }
  }

</script>