diff --git a/doc/template_relationship_mermaid.md b/doc/template_relationship_mermaid.md
deleted file mode 100644
index cf94670..0000000
--- a/doc/template_relationship_mermaid.md
+++ /dev/null
@@ -1,107 +0,0 @@
-# DjangoBlog模板关系UML图
-
-## 模板继承关系图
-
-```mermaid
-graph TD
-    A[share_layout/base.html<br/>主基础模板] --> B[blog/article_index.html<br/>文章列表页]
-    A --> C[blog/article_detail.html<br/>文章详情页]
-    A --> D[blog/article_archives.html<br/>文章归档页]
-    A --> E[blog/links_list.html<br/>友链页面]
-    A --> F[blog/error_page.html<br/>错误页面]
-    A --> G[search/search.html<br/>搜索页面]
-    
-    H[share_layout/base_account.html<br/>账户基础模板] --> I[account/login.html<br/>登录页面]
-    H --> J[account/registration_form.html<br/>注册页面]
-    H --> K[account/forget_password.html<br/>忘记密码页面]
-    H --> L[account/result.html<br/>结果页面]
-    H --> M[oauth/require_email.html<br/>邮箱验证页面]
-```
-
-## 模板包含关系图
-
-```mermaid
-graph TD
-    A[share_layout/base.html] --> B[share_layout/nav.html<br/>导航菜单]
-    A --> C[share_layout/footer.html<br/>页脚]
-    
-    D[blog/article_detail.html] --> E[comments/tags/comment_list.html<br/>评论列表]
-    D --> F[comments/tags/post_comment.html<br/>发表评论]
-    
-    B --> G[share_layout/nav_node.html<br/>导航节点]
-    
-    E --> H[comments/tags/comment_item_tree.html<br/>评论树]
-    H --> I[comments/tags/comment_item.html<br/>评论项]
-```
-
-## 模板与标签关系图
-
-```mermaid
-graph LR
-    A[blog_tags.py<br/>博客标签库] --> B[load_article_detail<br/>文章详情标签]
-    A --> C[load_sidebar<br/>侧边栏标签]
-    A --> D[load_breadcrumb<br/>面包屑标签]
-    A --> E[custom_markdown<br/>Markdown过滤器]
-    
-    F[comments_tags.py<br/>评论标签库] --> G[show_comment_item<br/>评论项标签]
-    F --> H[parse_commenttree<br/>评论树解析]
-    
-    I[blog/article_index.html] --> A
-    J[blog/article_detail.html] --> A
-    K[comments/tags/comment_list.html] --> F
-```
-
-## 完整模板架构图
-
-```mermaid
-graph TB
-    subgraph "基础层"
-        A[base.html]
-        B[base_account.html]
-    end
-    
-    subgraph "博客功能层"
-        C[article_index.html]
-        D[article_detail.html]
-        E[article_archives.html]
-    end
-    
-    subgraph "账户层"
-        F[login.html]
-        G[register.html]
-    end
-    
-    subgraph "评论层"
-        H[comment_list.html]
-        I[comment_item.html]
-    end
-    
-    subgraph "标签层"
-        J[article_info.html]
-        K[sidebar.html]
-        L[breadcrumb.html]
-    end
-    
-    subgraph "模板标签"
-        M[blog_tags.py]
-        N[comments_tags.py]
-    end
-    
-    A --> C
-    A --> D
-    A --> E
-    B --> F
-    B --> G
-    
-    D --> H
-    H --> I
-    
-    M --> J
-    M --> K
-    M --> L
-    N --> I
-    
-    C --> M
-    D --> M
-    H --> N
-```
diff --git a/doc/大学生校园日常博客初步UML图.pdf b/doc/大学生校园日常博客初步UML图.pdf
deleted file mode 100644
index 3b6ebc4..0000000
Binary files a/doc/大学生校园日常博客初步UML图.pdf and /dev/null differ
diff --git a/doc/大学生校园日常博客初步思维导图.pdf b/doc/大学生校园日常博客初步思维导图.pdf
deleted file mode 100644
index e7d962d..0000000
Binary files a/doc/大学生校园日常博客初步思维导图.pdf and /dev/null differ
diff --git a/doc/说明.docx b/doc/说明.docx
new file mode 100644
index 0000000..0880716
Binary files /dev/null and b/doc/说明.docx differ
diff --git a/src/DjangoBlog/accounts/admin.py b/src/DjangoBlog/accounts/admin.py
index 32e483c..6b48ec9 100644
--- a/src/DjangoBlog/accounts/admin.py
+++ b/src/DjangoBlog/accounts/admin.py
@@ -57,3 +57,22 @@ class BlogUserAdmin(UserAdmin):
         'source')
     list_display_links = ('id', 'username')
     ordering = ('-id',)
+    
+    # 添加 fieldsets 配置，解决 usable_password 字段错误
+    fieldsets = (
+        (None, {'fields': ('username', 'password')}),
+        (_('Personal info'), {'fields': ('first_name', 'last_name', 'email', 'nickname')}),
+        (_('Permissions'), {
+            'fields': ('is_active', 'is_staff', 'is_superuser', 'groups', 'user_permissions'),
+        }),
+        (_('Important dates'), {'fields': ('last_login', 'date_joined')}),
+        (_('Other info'), {'fields': ('source', 'creation_time', 'last_modify_time')}),
+    )
+    
+    # 添加 add_fieldsets 配置
+    add_fieldsets = (
+        (None, {
+            'classes': ('wide',),
+            'fields': ('email', 'password1', 'password2'),
+        }),
+    )
\ No newline at end of file