<template>

  <div>

    <h3>我是{{name}},今年{{age}}歲,愛好：{{hobby}}</h3>,{{flag}}

  </div>

</template>



<script>

export default {

    name:'Cpn',

    // 簡(jiǎn)單接收

    /* props:['age','hobby','name'], */

    // 聲明要接收的數(shù)據(jù)，聲明時(shí)對(duì)接收的數(shù)據(jù)進(jìn)行限制

    props:{

        name: {

            // 聲明類型

            type:String,

            //聲明是否必需

            require:true,

            // 聲明默認(rèn)值

            default:'默認(rèn)值'

        },

        age:{

            type:Number,

            require:true,

            default:18

        },

        hobby:{

            type:String,

            require:false

        },

        flag:{

            type:Boolean,

            require:false

        }

    }

}

</script>

<template>

  <div id="app">

    <!-- <cpn name='李明' age="22" hobby="打球"></cpn>

    <cpn name="小紅" age="20" hobby="彈琴"></cpn> -->

    <cpn name='李明'></cpn>

    <cpn hobby="編程" :flag="flag"></cpn>

      <!--備注：如果要將當(dāng)前組件data里的數(shù)據(jù)傳遞給子組件，需要通過v-bing:變量名=”變量名“的形式傳遞，如果傳遞的不是data里面的數(shù)據(jù)，就不用加綁定指令，即v-bind（可簡(jiǎn)寫為：）-->

    <button @click="changeFlag">切換</button>

  </div>

</template>

<script>

import Cpn from './components/Cpn.vue'

export default {

  components: { Cpn },

  name: "App",

  data() {

    return {

      flag:false

    }

  },

  methods: {

    changeFlag(){

      console.log(this.flag)

      this.flag=!this.flag;

      console.log(this.flag)

    }

  },

}

</script>