update pure nest as well

things/nest/src/dto/ReturnMessage.dto.ts

 import { ApiProperty } from '@nestjs/swagger';
 import { HttpException } from '@nestjs/common';
+import { PageSettingsWise } from './PageSettings.dto';
 
 export interface BlankReturnMessage {
   statusCode: number;
@@ -12,11 +13,11 @@ export interface ReturnMessage<T> extends BlankReturnMessage {
 }
 
 export class BlankReturnMessageDto implements BlankReturnMessage {
-  @ApiProperty({ description: '返回状态' })
+  @ApiProperty({ description: 'Return code' })
   statusCode: number;
-  @ApiProperty({ description: '返回信息' })
+  @ApiProperty({ description: 'Return message' })
   message: string;
-  @ApiProperty({ description: '是否成功' })
+  @ApiProperty({ description: 'Whether success.' })
   success: boolean;
   constructor(statusCode: number, message?: string) {
     this.statusCode = statusCode;
@@ -48,9 +49,22 @@ export function ReturnMessageDto<T extends ClassOrArray>(type: T) {
       this.data = data;
     }
   };
-  ApiProperty({ description: '返回数据', type })(cl.prototype, 'data');
+  ApiProperty({ description: 'Return data.', type })(cl.prototype, 'data');
   Object.defineProperty(cl, 'name', {
     value: `${getClass(type).name}ReturnMessageDto`,
   });
   return cl;
 }
+
+export class StringReturnMessageDto
+  extends BlankReturnMessageDto
+  implements ReturnMessage<string>
+{
+  @ApiProperty({ description: 'Return data.' })
+  data?: string;
+
+  constructor(statusCode: number, message?: string, data?: string) {
+    super(statusCode, message);
+    this.data = data;
+  }
+}