方法一

1.在utils下创建一个preventReClick.js文件

preventReClick.js

export default {
    install (Vue) {
      // 防止重复点击
      Vue.directive('preventReClick', {
        inserted (el, binding) {
          el.addEventListener('click', () => {
            if (!el.disabled) {
              el.disabled = true
              setTimeout(() => {
                el.disabled = false
              }, 3000)
            }
          })
        }
      })
    }
  }

2.在main.js 入口文件引用preventReClick.js

import preventReClick from './utils/preventReClick'  
Vue.use(preventReClick)

3.在页面使用

<el-button   @click="handleClick" v-preventReClick >提交</el-button>

方法二、

1.在utils/index.js写入

import Vue from 'vue';
 
const preventReClick = Vue.directive('preventReClick', {
  inserted: function (el, binding) {
    el.addEventListener('click', () => {
      if (!el.disabled) {
        el.disabled = true
        setTimeout(() => {
          el.disabled = false
        }, binding.value || 3000)
      }
    })
  }
});
 
export {
  preventReClick
}

2.使用

<el-button v-preventReClick>提交</el-button>