vue一键复制

<template>
  <div>
    <p>{{message}}</p>
      <button type="button" @click="doCopy(我是复制内容)">Copy</button>
  </div>

</template>

<script>
export default {
  data () {
    return {
      message: ''
    }
  },
  methods: {
    dataProcessing (val) {
      this.message += ' ' + val
    },
    doCopy: function (val) {
      this.dataProcessing(val)
      this.$copyText(this.message).then(function (e) {
        alert(e.text)
      }, function (e) {
        alert('复制失败', e.text)
      })
    }
  }
}
</script>