package.json 中: 添加clipboard 依赖

"dependencies": {
  "vue": "^2.2.2",
  "vue-router": "^2.3.0",
  "vue-resource": "^1.3.1",
  "deepmerge": "^1.3.1",
  "async-validator": "^1.6.7",
  "popper.js": "^0.6.4",
  "vuex": "^2.0.0",
"clipboard": "^1.7.1"
},

引入：

import Clipboard from 'clipboard'

用法：

new Clipboard('#copybtn', {
  text: function(trigger) {
    return "aaaaa";  // aaaaa为设置到剪切板的内容
  }
});