Vue官方文档(34)：混入，组件本身的属性优先级高于混入

<template>
  <div >
    {{message}}

  </div>
</template>


 <script>
 
 //import Vue from 'vue'

 var mixin = {
  data: function () {
    return {
      message: 'hello',
      foo: 'abc'
    }
  }
}
 

  export default{
    mixins: [mixin]
      ,
  components: {

  },
    data() {
      return {
        message: 'goodby',
        bar: 'def'
              }
            },
    methods:{
      
    },
    created(){
          console.log(JSON.stringify(this.$data))
          // => { message: "goodbye", foo: "abc", bar: "def" }
    },
    computed: {
 
    },
     watch: {
    
  }
  }
      
    </script>

<style >

</style>