将FMMsgWnd,hide改为accept，防止内存泄漏

windows/fmmsgwnd.cpp

@@ -8,6 +8,7 @@ FMMsgWnd::FMMsgWnd(QDialog *parent) :
 {
     ui->setupUi(this);
     setAttribute(Qt::WA_TranslucentBackground);
+    setAttribute(Qt::WA_QuitOnClose, false);
     this->setWindowFlags(windowFlags() | Qt::FramelessWindowHint);
 }
 
@@ -87,5 +88,5 @@ void FMMsgWnd::LoginSuccess(const QString &account, const QString &name, const Q
 
 void FMMsgWnd::on_btn_confirm_clicked()
 {
-    this->hide();
+    this->accept();
 }