diff --git a/Coursels/.settings/org.eclipse.core.resources.prefs b/Coursels/.settings/org.eclipse.core.resources.prefs
deleted file mode 100644
index 99f26c0..0000000
--- a/Coursels/.settings/org.eclipse.core.resources.prefs
+++ /dev/null
@@ -1,2 +0,0 @@
-eclipse.preferences.version=1
-encoding/<project>=UTF-8
diff --git a/Coursels/.settings/org.eclipse.jdt.core.prefs b/Coursels/.settings/org.eclipse.jdt.core.prefs
deleted file mode 100644
index 8c9943d..0000000
--- a/Coursels/.settings/org.eclipse.jdt.core.prefs
+++ /dev/null
@@ -1,14 +0,0 @@
-eclipse.preferences.version=1
-org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=17
-org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=17
-org.eclipse.jdt.core.compiler.debug.lineNumber=generate
-org.eclipse.jdt.core.compiler.debug.localVariable=generate
-org.eclipse.jdt.core.compiler.debug.sourceFile=generate
-org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
-org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
-org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
-org.eclipse.jdt.core.compiler.release=enabled
-org.eclipse.jdt.core.compiler.source=17
diff --git a/studentguanli/bin/com/system/dao/AttendancesbwDao.class b/studentguanli/bin/com/system/dao/AttendancesbwDao.class
deleted file mode 100644
index 5f5fa5a..0000000
Binary files a/studentguanli/bin/com/system/dao/AttendancesbwDao.class and /dev/null differ
diff --git a/studentguanli/bin/com/system/impl/Attendancesbwimpl.class b/studentguanli/bin/com/system/impl/Attendancesbwimpl.class
deleted file mode 100644
index 196d45c..0000000
Binary files a/studentguanli/bin/com/system/impl/Attendancesbwimpl.class and /dev/null differ