diff --git a/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/controller/admin/mail/MailAccountController.java b/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/controller/admin/mail/MailAccountController.java
index 33469e3c2..0fb95087a 100644
--- a/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/controller/admin/mail/MailAccountController.java
+++ b/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/controller/admin/mail/MailAccountController.java
@@ -30,7 +30,7 @@ import static cn.iocoder.yudao.framework.common.pojo.CommonResult.success;
 @RequestMapping("/system/mail-account")
 public class MailAccountController {
     @Resource
-    private MailAccountService mailAccountService;
+    private MailAccountService mailAccountService; // TODO @wangjingyi：属性和类名，中间要空一行
 
     @PostMapping("/create")
     @ApiOperation("创建邮箱账号")
@@ -50,7 +50,7 @@ public class MailAccountController {
 
     @DeleteMapping("/delete")
     @ApiOperation("删除邮箱账号")
-    @PreAuthorize("@ss.hasPermission('system:mail-account:delete')")
+    @PreAuthorize("@ss.hasPermission('system:mail-account:delete')") // TODO @wangjingyi：id 应该是 @RequestParam。另外，id 的 swagger 注解，要写下
     public CommonResult<Boolean> deleteMailAccount(@Valid @RequestBody Long id) {
         mailAccountService.delete(id);
         return success(true);
@@ -63,7 +63,7 @@ public class MailAccountController {
     public CommonResult<MailAccountBaseVO> getMailAccount(@RequestParam("id") Long id) {
         MailAccountDO mailAccountDO = mailAccountService.getMailAccount(id);
         return success(MailAccountConvert.INSTANCE.convert(mailAccountDO));
-    }
+    } // TODO wangjingyi：方法与方法之间，只空一行
 
 
     @GetMapping("/page")
@@ -82,7 +82,7 @@ public class MailAccountController {
         list.sort(Comparator.comparing(MailAccountDO::getId));
         return success(MailAccountConvert.INSTANCE.convertList02(list));
     }
-    @PostMapping("/send")
+    @PostMapping("/send") // TODO wangjingyi：方法与方法之间，空一行
     @ApiOperation("发送邮件")
     @PreAuthorize("@ss.hasPermission('system:mail-account:send')")
     public CommonResult<Boolean> sendMail(MailSendVO mailSendVO){
diff --git a/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/controller/admin/mail/vo/account/MailAccountCreateReqVO.java b/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/controller/admin/mail/vo/account/MailAccountCreateReqVO.java
index b07801cee..9dc681962 100644
--- a/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/controller/admin/mail/vo/account/MailAccountCreateReqVO.java
+++ b/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/controller/admin/mail/vo/account/MailAccountCreateReqVO.java
@@ -2,7 +2,7 @@ package cn.iocoder.yudao.module.system.controller.admin.mail.vo.account;
 
 import lombok.Data;
 
-@Data
-public class MailAccountCreateReqVO extends MailAccountBaseVO{
+@Data // TODO @wangjingyi：swagger 注解
+public class MailAccountCreateReqVO extends MailAccountBaseVO{ // TODO @wangjingyi：要空格再 {
 
 }
diff --git a/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/controller/admin/mail/vo/account/MailAccountUpdateReqVO.java b/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/controller/admin/mail/vo/account/MailAccountUpdateReqVO.java
index 9482ce474..925e7cd44 100644
--- a/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/controller/admin/mail/vo/account/MailAccountUpdateReqVO.java
+++ b/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/controller/admin/mail/vo/account/MailAccountUpdateReqVO.java
@@ -5,4 +5,6 @@ import lombok.Data;
 @Data
 public class MailAccountUpdateReqVO extends MailAccountBaseVO{
 
+    // TODO @wangjingyi：更新的话，是不是要有个 id？？？
+
 }
diff --git a/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/controller/admin/mail/vo/send/MailSendVO.java b/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/controller/admin/mail/vo/send/MailSendVO.java
index 41d9d03b4..4d1bd9a5f 100644
--- a/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/controller/admin/mail/vo/send/MailSendVO.java
+++ b/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/controller/admin/mail/vo/send/MailSendVO.java
@@ -5,7 +5,7 @@ import lombok.Data;
 
 import java.util.List;
 @Data
-public class MailSendVO {
+public class MailSendVO { // TODO @wangjingyi：1）参数校验；2）ReqVO
 
     @ApiModelProperty(value = "邮箱" , required = true , example = "yudaoyuanma@123.com")
     private String from;
diff --git a/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/service/mail/MailAccountService.java b/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/service/mail/MailAccountService.java
index 3cc0acb02..464c43205 100644
--- a/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/service/mail/MailAccountService.java
+++ b/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/service/mail/MailAccountService.java
@@ -13,12 +13,12 @@ import java.util.List;
 /**
  * <p>
  *  邮箱账号 Service 接口
- * </p>
+ * </p>  // TODO wangjingyi：不用 <p></p> 标签；
  *
  * @author wangjingyi
  * @since 2022-03-21
  */
-public interface MailAccountService {
+public interface MailAccountService { // TODO wangjingyi：方法的注释
 
     Long create(MailAccountCreateReqVO createReqVO);
 
diff --git a/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/service/mail/impl/MailAccountServiceImpl.java b/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/service/mail/impl/MailAccountServiceImpl.java
index 0c0d86eba..c4610222a 100644
--- a/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/service/mail/impl/MailAccountServiceImpl.java
+++ b/yudao-module-system/yudao-module-system-impl/src/main/java/cn/iocoder/yudao/module/system/service/mail/impl/MailAccountServiceImpl.java
@@ -62,7 +62,7 @@ public class MailAccountServiceImpl implements MailAccountService {
         this.validateMailAccountOnly(map);
         MailAccountDO mailAccountDO = MailAccountConvert.INSTANCE.convert(updateReqVO);
         // 校验是否存在
-        this.validateMailAccountExists(mailAccountDO.getId());
+        this.validateMailAccountExists(mailAccountDO.getId()); // TODO wangjingyi：没有传递 id 噢
         mailAccountMapper.updateById(mailAccountDO);
     }
 
@@ -92,6 +92,7 @@ public class MailAccountServiceImpl implements MailAccountService {
     @Override
     public void sendMail(MailSendVO mailSendVO) {
         // FIXME 查询模版信息 查询模版多条时 使用规则是什么
+        // 回复：选择某一条模板，进行发送邮件。
         List<MailTemplateDO> mailTemplateDOList =  mailTemplateMapper.selectList(
                 "username",mailSendVO.getFrom()
         );
@@ -100,6 +101,7 @@ public class MailAccountServiceImpl implements MailAccountService {
                 "from",mailSendVO.getFrom()
         );
         // FIXME 模版和邮件内容合成方式未知
+        // 回复：参考短信的方式，通过 {name} {mobile} 这样的占位符。搜 formatSmsTemplateContent 方法
         String content = mailSendVO.getContent();
         String templateContent = "";
         // 后续功能 TODO ：附件查询
@@ -119,9 +121,10 @@ public class MailAccountServiceImpl implements MailAccountService {
     }
 
     private void validateMailAccountOnly(Map params){
+        // TODO wangjingyi：Service 里，不允许出现 MyBatis 操作。而是 Mapper 提供对应查询方法
         QueryWrapper queryWrapper = new QueryWrapper<MailAccountDO>();
         params.forEach((k , v)->{
-            queryWrapper.like(k , v);
+            queryWrapper.like(k , v); // TODO wangjingyi：账号，应该是 equlas，不能是 like
         });
         if (mailAccountMapper.selectOne(queryWrapper) != null) {
             throw exception(MAIL_ACCOUNT_EXISTS);