docs: 删除文件

src/main/java/nju/seec/helper/dto/quiz/QuizStudentAnswerDTO.java

@@ -1,36 +0,0 @@
-package nju.seec.helper.dto.quiz;
-
-import lombok.Data;
-
-import javax.validation.Valid;
-import javax.validation.constraints.NotEmpty;
-import javax.validation.constraints.NotNull;
-import javax.validation.constraints.Past;
-import java.io.Serializable;
-import java.time.LocalDateTime;
-import java.util.Map;
-
-/**
- * @author cst
- */
-@Data
-public class QuizStudentAnswerDTO implements Serializable {
-    private static final long serialVersionUID = -5846899734313166305L;
-    @NotEmpty(message = "回答不能为空")
-    private Map<String, Object> answers;
-
-    @NotNull(message = "缺少做题记录")
-    @Valid
-    private Map<String, AnswerRecordDTO> records;
-
-    @Data
-    public static class AnswerRecordDTO {
-        @NotNull(message = "缺少做题开始时间")
-        @Past(message = "开始时间错误")
-        private LocalDateTime startAt;
-
-        @NotNull(message = "缺少做题结束时间")
-        @Past(message = "结束时间错误")
-        private LocalDateTime endAt;
-    }
-}