diff --git a/1.txt b/1.txt
deleted file mode 100644
index 190a180..0000000
--- a/1.txt
+++ /dev/null
@@ -1 +0,0 @@
-123
diff --git a/hx.txt b/hx.txt
deleted file mode 100644
index 4ddca05..0000000
--- a/hx.txt
+++ /dev/null
@@ -1,50 +0,0 @@
-values_strings_strings.xml：
-<!--    私密模式  -->
-<string name="Secret">Secret</string>
-<string name="Quit_Secret">Quit_Secret</string>
-
-menu_sub_folder.xml：
-<!--    私密模式  -->
-    <item
-        android:id="@+id/menu_secret"
-        android:title="@string/Secret"/>
-    <item
-        android:id="@+id/menu_quit_secret"
-        android:title="@string/Quit_Secret"/>
-//    私密模式
-
-NotesListActivity类：
-    public static int secret_mode = 0;
-private void startAsyncNotesListQuery() {
-        String selection = (mCurrentFolderId == Notes.ID_ROOT_FOLDER) ? ROOT_FOLDER_SELECTION
-                : NORMAL_SELECTION;
-        if(secret_mode == 0) {
-            mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null,
-                    Notes.CONTENT_NOTE_URI, NoteItemData.PROJECTION, selection, new String[]{
-                            String.valueOf(mCurrentFolderId)
-                    }, NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC");
-        }
-        else{
-            String str1 = "111";
-            String [] PROJECTION = new String [] {  //定义一个新的PROJECTION数组，只换掉SNIPPET
-                    NoteColumns.ID,
-                    NoteColumns.ALERTED_DATE,
-                    NoteColumns.BG_COLOR_ID,
-                    NoteColumns.CREATED_DATE,
-                    NoteColumns.HAS_ATTACHMENT,
-                    NoteColumns.MODIFIED_DATE,
-                    NoteColumns.NOTES_COUNT,
-                    NoteColumns.PARENT_ID,
-//                    NoteColumns.SNIPPET,
-                    str1,
-                    NoteColumns.TYPE,
-                    NoteColumns.WIDGET_ID,
-                    NoteColumns.WIDGET_TYPE,
-            };
-            mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null,
-                    Notes.CONTENT_NOTE_URI, PROJECTION, selection, new String[]{
-                            String.valueOf(mCurrentFolderId)
-                    }, NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC");
-
-        }
-    }
diff --git a/jqy1.txt b/jqy1.txt
deleted file mode 100644
index be864f6..0000000
--- a/jqy1.txt
+++ /dev/null
@@ -1,50 +0,0 @@
-Menu_note_list.xml
-<!--    背景图功能  -->
-    <item
-        android:id="@+id/menu_a1"
-        android:title="@string/menu_a1"/>
-    <item
-        android:id="@+id/menu_a2"
-        android:title="@string/menu_a2"/>
-    <item
-        android:id="@+id/menu_a3"
-        android:title="@string/menu_a3"/>
- 
-NotelistActivity类
-//背景图功能
-    public int mode=-1;
-//    私密模式
-    public static int secret_mode = 0;
-//        背景图功能
-        getWindow().setBackgroundDrawableResource(R.drawable.a3);
-        getWindow().setBackgroundDrawableResource(R.drawable.a2);
-        getWindow().setBackgroundDrawableResource(R.drawable.a1);
-//        背景功能
-        if(mode==-1)
-            menu.findItem(R.id.menu_a1).setVisible(false);
-        else if (mode==0)
-            menu.findItem(R.id.menu_a2).setVisible(false);
-        else if (mode==1)
-            menu.findItem(R.id.menu_a3).setVisible(false);
-
-//            背景功能
-            case R.id.menu_a1:{
-                mode=-1;
-                getWindow().setBackgroundDrawableResource(R.drawable.a1);
-                break;
-            }
-            case R.id.menu_a2:{
-                mode=0;
-                getWindow().setBackgroundDrawableResource(R.drawable.a2);
-                break;
-            }
-            case R.id.menu_a3:{
-                mode=1;
-                getWindow().setBackgroundDrawableResource(R.drawable.a3);
-                break;
-            }
-Values_string.xml
-<!--    背景图功能 -->
-    <string name="menu_a2">Background: a2</string>
-    <string name="menu_a1">Background: a1</string>
-    <string name="menu_a3">Background: a3</string>
\ No newline at end of file
diff --git a/lmy.txt b/lmy.txt
deleted file mode 100644
index 9f03bf8..0000000
--- a/lmy.txt
+++ /dev/null
@@ -1,57 +0,0 @@
-NoteListActivity类：
-public void supportInvalidateOptionsMenu() {
-       invalidateOptionsMenu(); // 最终调用 Activity 的原生方法
-   }
-if(secret_mode == 1)
-            menu.findItem(R.id.menu_secret).setVisible(false);
-        else
-            menu.findItem(R.id.menu_quit_secret).setVisible(false);
-
-
-        return true;
-    }
-   
-
-	case R.id.menu_secret: {    // 进入私密模式
-                secret_mode = 1;  // 先临时设为1（用于对话框标题提示）
-                AlertDialog.Builder dialog = new AlertDialog.Builder(NotesListActivity.this);
-                dialog.setTitle("重要提醒")
-                        .setMessage("您确认进入私密模式吗？")
-                        .setCancelable(false)
-                        .setPositiveButton("确认", (d, which) -> {
-                            startAsyncNotesListQuery();
-                            Toast.makeText(NotesListActivity.this, "您已进入私密模式", Toast.LENGTH_SHORT).show();
-                        })
-                        .setNegativeButton("取消", (d, which) -> {
-                            secret_mode = 0;  // 恢复状态
-                            supportInvalidateOptionsMenu();  // 强制刷新菜单
-                        })
-                        .show();
-                break;
-            }
-            case R.id.menu_quit_secret: {    // 退出私密模式
-                AlertDialog.Builder dialog = new AlertDialog.Builder(NotesListActivity.this);
-                dialog.setTitle("重要提醒")
-                        .setMessage("您确认退出私密模式吗？")
-                        .setCancelable(false)
-                        .setPositiveButton("确认", (d, which) -> {
-                            secret_mode = 0;
-                            startAsyncNotesListQuery();
-                            supportInvalidateOptionsMenu();  // 刷新菜单
-                            Toast.makeText(NotesListActivity.this, "您已退出私密模式", Toast.LENGTH_SHORT).show();
-                        })
-                        .setNegativeButton("取消", null)  // 无需操作
-                        .show();
-                break;
-            }
-
-ShareActionProvider：
-@Override
-public boolean onCreateOptionsMenu(Menu menu) {
-    getMenuInflater().inflate(R.menu.note_list, menu);
-    MenuItem enterSecret = menu.findItem(R.id.menu_secret);
-    MenuItem quitSecret = menu.findItem(R.id.menu_quit_secret);
-    enterSecret.setVisible(secret_mode == 0);  // 非私密模式时显示"进入"
-    quitSecret.setVisible(secret_mode == 1);   // 私密模式时显示"退出"
-    return true;
-}
\ No newline at end of file
diff --git a/model/230340152 韩笑-精度报告UML图/设计类图.png b/model/230340152 韩笑-精度报告UML图/设计类图.png
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