<template>
  <view>
    <view id="echarts" :prop="message" :change:prop="echarts.getMessage"></view>
	<button @click="click()">按钮</button>
  </view>
</template>

<script>
// 逻辑层
export default {
  data() {
    return {
      message: '首次传递数据'
    }
  },
  mounted() {
    
  },
  methods: {
    click(){
		this.message = "再发一次数据"
	}
  }
}
</script>

<script module="echarts" lang="renderjs">
export default {
  methods: {
  	getMessage(newValue) {
		console.log(newValue)
	}
  },
}
</script>

划重点：