使用更安全的with替换原本数据库文件打开方式

.gitignore

@@ -1,32 +1,4 @@
 点名器.spec
-build/点名器/点名器.exe.manifest
-build/点名器/点名器.pkg
-build/点名器/Analysis-00.toc
-build/点名器/base_library.zip
-build/点名器/EXE-00.toc
-build/点名器/PKG-00.toc
-build/点名器/PYZ-00.pyz
-build/点名器/PYZ-00.toc
-build/点名器/Tree-00.toc
-build/点名器/Tree-01.toc
-build/点名器/Tree-02.toc
-build/点名器/warn-点名器.txt
-build/点名器/xref-点名器.html
-build/点名器/localpycs/pyimod01_archive.pyc
-build/点名器/localpycs/pyimod02_importers.pyc
-build/点名器/localpycs/pyimod03_ctypes.pyc
-build/点名器/localpycs/pyimod04_pywin32.pyc
-build/点名器/localpycs/struct.pyc
-dist/点名器.exe
-README_Vanila.html
-README_Vanila.md
-README.html
-.history/README_Vanila_20221107204953.md
-.history/README_Vanila_20221107204954.md
-.history/.gitignore_20221107235331
-.history/点名器_20221107235625.pyw
-.history/README_20221107235533.md
-.history/.gitignore_20221107235715
-.history/点名器_20221108000106.pyw
-.history/.gitignore_20221119173544
-dist/names.xls
+build/
+dist/
+.history/