参数校验

有很多字符串都是必填

'use strict';
// 在文件中定义一下
const requireString = RuleType.string().required();
const maxString = (length) => RuleType.string().max(length);
// 参数校验
export class UserDAO {
  @Rule(requireString)
  name: string;
  @Rule(requireString)
  name: string;
  @Rule(requireString)
  name: string;
  @Rule(maxString(50))
  info: string;
  @Rule(maxString(200).required)
  remark: string;
}