帮我将attachmentVOS赋值到materialDetailsList中，并写出代码

好的，我理解您的意思了。如果您想将attachmentVOS赋值到materialDetailsList中，可以在循环中对应的位置添加代码来实现。假设您想将每个附件信息赋值给每个材料详情，可以按照以下方式修改代码：

for (MaterialDetailsVO materialDetailsVO : materialDetailsList) {
    List<AuditMaterialVO> auditMaterialList = materialDetailsVO.getAuditMaterialList();
    for (AuditMaterialVO auditMaterialVO : auditMaterialList) {
        List<AttachedFileVO> attachedFileList = auditMaterialVO.getAttachedFileList();
        for (AttachedFileVO attachedFileVO : attachedFileList) {
            // do something with the attached file
            
            // 将附件信息赋值给材料详情
            List<AttachmentVO> attachmentVOS = materialDetailsVO.getAttachmentVOS();
            if (attachmentVOS == null) {
                attachmentVOS = new ArrayList<>();
                materialDetailsVO.setAttachmentVOS(attachmentVOS);
            }
            AttachmentVO attachment = new AttachmentVO();
            attachment.setFileId(attachedFileVO.getFileId());
            attachment.setFileName(attachedFileVO.getFileName());
            attachmentVOS.add(attachment);
        }
    }
}

这段代码会将每个附件信息赋值给对应的材料详情，并将所有的AttachmentVO对象存储在materialDetailsVO中的attachmentVOS属性中。