js:
data() {
  return {
    rules: {
      name: [
        {
          reuired: true, message: '请输入名称'
        },
        {
          validator: function (rule, value, callback) {
            if (value == '测试') {
              callback(new Error('名字不能是测试!'))
            } else {
              callback()
            }
          }
        }
      ]
    }
  }
}