<h1 id="content">被复制的内容</h1>
     <button id="button">点击复制</button>

     <script>
        (function(){
            button.addEventListener('click', function(){
                var copyDom = document.querySelector('#content');
                //创建选中范围
                var range = document.createRange();
                range.selectNode(copyDom);
                //移除剪切板中内容
                window.getSelection().removeAllRanges();
                //添加新的内容到剪切板
                window.getSelection().addRange(range);
                //复制
                var successful = document.execCommand('copy');

                try{
                    var msg = successful ? "successful" : "failed";
                    alert('Copy command was : ' + msg);
                } catch(err){
                    alert('Oops , unable to copy!');
                }
            })
        })()
    </script>

    <input type="text" id="input" value="17373383"> <br>
    <button type="button" id="button">复制输入框中内容</button>
    <script>
        (function(){
            button.addEventListener('click', function(){
                input.select();
                document.execCommand('copy');
                alert('复制成功');
            })
        })()
    </script>

                <!--默认是截取.btn中的 data-clipboard-text的属性值-->
                <!-- <button class="btn" data-clipboard-text="3">Copy</button> -->
                
                <!--截取input输入框中的值-->
                <input id="foo" value="https://github.com/zenorocha/clipboard.js.git">
            
                <!-- Trigger -->
                <button class="btn" data-clipboard-target="#foo">
                    <img src="assets/clippy.svg" alt="Copy to clipboard">
                </button>
            
                <script src="https://cdn.bootcss.com/clipboard.js/2.0.1/clipboard.js"></script>
            
                <script>
            
                   
                    var clipboard = new ClipboardJS('.btn');
                    
                    clipboard.on('success', function (e) {
                        console.log(e);
                    });
                    clipboard.on('error', function (e) {
                        console.log(e);
                    });
                    
                </script>

    import Vue from 'vue'
    import VueClipboard from 'vue-clipboard2'
     
    VueClipboard.config.autoSetContainer = true // add this line
    Vue.use(VueClipboard)

    <div id="app"></div>     
    <template id="t">
      <div class="container">
        <input type="text" v-model="message">
        <button type="button"
          v-clipboard:copy="message"
          v-clipboard:success="onCopy"
          v-clipboard:error="onError">Copy!</button>
      </div>
    </template>    
    <script>
    new Vue({
      el: '#app',
      template: '#t',
      data: function () {
        return {
          message: 'Copy These Text'
        }
      },
      methods: {
        onCopy: function (e) {
          alert('You just copied: ' + e.text)
        },
        onError: function (e) {
          alert('Failed to copy texts')
        }
      }
    })
    </script> 

      <div id="app"></div>     
      <template id="t">
        <div class="container">
        <input type="text" v-model="message">
        <button type="button" @click="doCopy">Copy!</button>
        </div>
      </template>
     
      <script>
      new Vue({
        el: '#app',
        template: '#t',
        data: function () {
          return {
            message: 'Copy These Text'
          }
        },
        methods: {
          doCopy: function () {
            this.$copyText(this.message).then(function (e) {
              alert('Copied')
              console.log(e)
            }, function (e) {
              alert('Can not copy')
              console.log(e)
            })
          }
        }
      })
      </script>