允许从命令行给出文件名。

大作业/main.cpp

@@ -1,9 +1,16 @@
 #include "StudentInfoManager.hpp"
 #include "Tools.hpp"
 
-int main() {
+int main(int argc, char *argv[]) {
     enableEchoBack(); // Just in case
-    StudentInfoManager studManger;
-    studManger.mainloop();
+    StudentInfoManager *studManager;
+    if (argc > 1) {
+        studManager = new StudentInfoManager(std::string(argv[1]));
+    }
+    else {
+        studManager = new StudentInfoManager();
+    }
+    studManager->mainloop();
+    delete studManager;
     return 0;
 }