修复了项目无法正常打开的BUG

QGobangTool/QGobangTool.pro

@@ -14,8 +14,7 @@ CONFIG += c++17 cmdline
 CONFIG -= debug_and_release debug_and_release_target
 
 SOURCES += \
-        QGobangRule.cpp \
-        main.cpp
+        QGobangRule.cpp
 
 HEADERS += \
   QGobangRule.h

QGobangTool/main.cpp

@@ -1,19 +0,0 @@
-#include <QCoreApplication>
-
-int main(int argc, char *argv[])
-{
-    QCoreApplication a(argc, argv);
-
-    // Set up code that uses the Qt event loop here.
-    // Call a.quit() or a.exit() to quit the application.
-    // A not very useful example would be including
-    // #include <QTimer>
-    // near the top of the file and calling
-    // QTimer::singleShot(5000, &a, &QCoreApplication::quit);
-    // which quits the application after 5 seconds.
-
-    // If you do not need a running Qt event loop, remove the call
-    // to a.exec() or use the Non-Qt Plain C++ Application template.
-
-    return a.exec();
-}