添加close file。

大作业/StudentInfoManager.cpp

@@ -92,7 +92,8 @@ bool StudentInfoManager::promptForFileName() {
             if (tempFile.exists() && tempFile.is_regular_file()) {
                 int backSpaceCount = 0;
                 bool overWrite = false;
-                std::cout << "The file already exists. Replace? (y / n): "
+                std::cout << "The file " << tempFile.path()
+                          << " already exists. Replace? (y / n): "
                           << std::flush;
 
                 std::cout << "no" << std::flush;
@@ -755,6 +756,8 @@ void StudentInfoManager::displayHelp() {
     std::cout << "Next Page (j)\n";
     std::cout << "Previous Page (k)\n";
     std::cout << "Show (h)elp\n";
+    std::cout << "(W)rite to disk\n";
+    std::cout << "(C)lose file\n";
     std::cout << "(Q)uit" << resetOutputColor << std::endl;
     waitForAnyInput();
 }
@@ -851,6 +854,11 @@ void StudentInfoManager::mainloop() {
                 backSpaceCount = 13;
                 cmd = infoManagerCommand::home::saveFile;
             }
+            else if (commandLetter == 'c') {
+                std::cout << "Close file" << std::flush;
+                backSpaceCount = 10;
+                cmd = infoManagerCommand::home::closeFile;
+            }
             else if (commandLetter == 'q') {
                 std::cout << "Quit" << std::flush;
                 backSpaceCount = 4;