更新代码

control/savelog/main.cpp

@@ -7,7 +7,10 @@
 int main(int argc, char *argv[])
 {
     QApplication a(argc, argv);
-    a.setFont(QFont("Microsoft Yahei", 9));
+    QFont font;
+    font.setFamily("Microsoft Yahei");
+    font.setPixelSize(13);
+    a.setFont(font);
 
 #if (QT_VERSION < QT_VERSION_CHECK(5,0,0))
 #if _MSC_VER

control/savelog/savelog.cpp

@@ -9,6 +9,7 @@
 #include "qdatetime.h"
 #include "qapplication.h"
 #include "qtimer.h"
+#include "qtextstream.h"
 #include "qstringlist.h"
 
 #define QDATE qPrintable(QDate::currentDate().toString("yyyy-MM-dd"))