vue中js实现点击复制文本到剪贴板的3种方案

 npm install clipboard --save

<template>
  <div>
    <button @click="copyText">复制文本</button>
  </div>
</template>
<script>
import clipboard from 'clipboard';
export default {
  methods: {
    copyText() {
      let text = 'Hello World';
      clipboard.writeText(text);
      alert('已复制到剪贴板！');
    }
  }
}
</script>

<template>
  <div>
    <button v-copy="text">复制文本</button>
  </div>
</template>
<script>
export default {
  data() {
    return {
      text: 'Hello World'
    }
  }
}
</script>
// 注册指令
Vue.directive('copy', {
  bind: function(el, binding) {
    el.$copy = function() {
      const textarea = document.createElement('textarea');
      textarea.value = binding.value;
      document.body.appendChild(textarea);
      textarea.select();
      document.execCommand('Copy');
      document.body.removeChild(textarea);
    }
    el.addEventListener('click', el.$copy);
  },
  unbind: function(el) {
    el.removeEventListener('click', el.$copy);
  }
});

npm install clipboard --save 

<template>
  <div>
    <button class="copy-btn" data-clipboard-text="Hello World">复制文本</button>
  </div>
</template>
<script>
import ClipboardJS from 'clipboard';
export default {
  mounted() {
    new ClipboardJS('.copy-btn');
  }
}
</script>

npm i clipboard
# 或者
yarn add clipboard

<template>
  <button class="copy-btn">复制</button>
</template>
<script setup>
import { onMounted, ref } from 'vue'
import ClipboardJS from 'clipboard'
const clipboardText = ref('hello world')
const copyText = () => {
  const clipboard = new ClipboardJS('.copy-btn', {
    text() {
      return clipboardText.value
    }
  })
  clipboard.on('success', () => {
    console.log('复制成功')
  })
  clipboard.on('error', () => {
    console.log('复制失败')
  })
}
onMounted(() => {
  copyText()
})
</script>