Refactor code for improved readability and consistency

- Updated function definitions to follow consistent formatting.
- Enhanced menu display with version information and developer credits.
- Improved binary file handling for better data management.
- Added .gitignore file to exclude unnecessary files from version control.

Author: ducladev

.gitignore

@@ -0,0 +1,29 @@
+# Ignore build output and binaries
+*.exe
+*.bin
+*.obj
+*.o
+*.dll
+*.log
+
+# Ignore VS Code settings
+.vscode/
+
+# Ignore OS files
+Thumbs.db
+.DS_Store
+
+# Ignore backup files
+*.bak
+*.tmp
+~$*
+
+# Ignore other temp files
+*.user
+*.suo
+*.pch
+*.idb
+*.class
+*.pyc
+*.pyo
+*.pyd

changesach.bin

@@ -8,62 +8,65 @@
 
 using namespace std;
 
-int main() {
+int main()
+{
     int chon;
-    do {
+    do
+    {
         Menu();
         cin >> chon;
         cout << "=========================" << endl;
-        switch(chon) {
-            case 1:
-                ThemSach();
-                break;
-            case 2:
-                SuaSach();
-                break;
-            case 3:
-                XoaSach();
-                break;
-            case 4:
-                ThemSinhVien();
-                break;
-            case 5:
-                SuaSinhVien();
-                break;
-            case 6:
-                XoaSinhVien();
-                break;
-            case 7:
-                MuonSach();
-                break;
-            case 8:
-                TraSach();
-                break;
-            case 9:
-                ToanBoSach();
-                break;
-            case 10:
-                ToanBoSinhVien();
-                break;
-            case 11:
-                SachMotSinhVienMuon();
-                break;
-            case 12:
-                ToanBoSachDuocMuon();
-                break;
-            case 13:
-                Thoat();
-                break;
+        switch (chon)
+        {
+        case 1:
+            ThemSach();
+            break;
+        case 2:
+            SuaSach();
+            break;
+        case 3:
+            XoaSach();
+            break;
+        case 4:
+            ThemSinhVien();
+            break;
+        case 5:
+            SuaSinhVien();
+            break;
+        case 6:
+            XoaSinhVien();
+            break;
+        case 7:
+            MuonSach();
+            break;
+        case 8:
+            TraSach();
+            break;
+        case 9:
+            ToanBoSach();
+            break;
+        case 10:
+            ToanBoSinhVien();
+            break;
+        case 11:
+            SachMotSinhVienMuon();
+            break;
+        case 12:
+            ToanBoSachDuocMuon();
+            break;
+        case 13:
+            Thoat();
+            break;
         }
-        if(chon != 13) {
+        if (chon != 13)
+        {
             cout << endl;
-            cout << "========================="<<endl;
+            cout << "=========================" << endl;
             cout << "=> Nhan Enter de tro ve !";
             cin.ignore();
             cin.get();
             system("clear");
         }
-    }
-    while(chon != 13);
-	return 0;
+    } while (chon != 13);
+    return 0;
 }