优化：培训详情问题修复

src/pages/systemManage/accountManage/index.tsx

@@ -135,7 +135,7 @@ function AccountManageView() {
       title: '角色',
       align: 'center',
       width: '10%',
-      render: (_text: string, record) => <div>{record.roleInfoDTO.roleName}</div>,
+      render: (_text: string, record) => record?.roleInfoDTO?.roleName,
     },
     { title: '手机号', dataIndex: 'phoneNum', align: 'center', width: '150px' },
     { title: '邮箱', align: 'center', width: '18%', dataIndex: 'email' },