vue3 引用vue-ueditor-wrap中百度编辑器ueditor实例，字数统计

   ready (editorInstance) {
      this.editorInstance = editorInstance
    }

拿到this.editorInstance后可以调用所有实例的api了

参考vue-ueditor-wrap的文档vue-ueditor-wrap - Vue + UEditor + v-model双向绑定Vue + UEditor + v-model双向绑定https://hc199421.gitee.io/vue-ueditor-wrap/#/api

 

纯文本的字数统计就是this.editorInstance.getContentTxt().length

完。