基于element-ui的rules中正则表达式

<template> <el-form :model="unuseForm" label-position="top" :rules="dialogRules"> <el-form-item label="原因" prop="loseEfficacyReason">  <el-input type="textarea" v-model="unuseForm.loseEfficacyReason" auto-complete="off"></el-input> </el-form-item> </el-form></template><script>export default{ data(){ return {  dialogRules: {  loseEfficacyReason: [   { required: true, message: '请输入原因', trigger: 'blur' },   { min: 2, message: '请输入不少于2个字符', trigger: 'blur' },   { pattern: /^[A-Za-z0-9/u4e00-/u9fa5]+$/, message: '不允许输入空格等特殊符号' }  ]  } } }}</script>