feat: 创建 ExMyStyle 一个空的Qt的工程，用来编码自定义控件（操作系统层次的重新绘画控件）

QtMyStyleEx/ExMyStyle.cpp

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+/*
+ * Author:  touwoyimuli <touwoyimuli@gmai.com>
+ * blogs:   https://touwoyimuli.github.io/
+ *
+ *             Copyright 2019 touwoyimuli
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "ExMyStyle.h"
+
+ExMyStyle::ExMyStyle(QWidget *parent)
+    : QDialog(parent)
+{
+}
+
+ExMyStyle::~ExMyStyle()
+{
+
+}

QtMyStyleEx/ExMyStyle.h

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+/*
+ * Author:  touwoyimuli <touwoyimuli@gmai.com>
+ * blogs:   https://touwoyimuli.github.io/
+ *
+ *             Copyright 2019 touwoyimuli
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef EXMYSTYLE_H
+#define EXMYSTYLE_H
+
+#include <QDialog>
+
+class ExMyStyle : public QDialog
+{
+    Q_OBJECT
+
+public:
+    ExMyStyle(QWidget *parent = 0);
+    ~ExMyStyle();
+};
+
+#endif // EXMYSTYLE_H

QtMyStyleEx/QtMyStyleEx.pro

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+#-------------------------------------------------
+#
+# Project created by QtCreator 2020-01-07T20:08:35
+#
+#-------------------------------------------------
+
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET = QtMyStyleEx
+TEMPLATE = app
+
+# The following define makes your compiler emit warnings if you use
+# any feature of Qt which has been marked as deprecated (the exact warnings
+# depend on your compiler). Please consult the documentation of the
+# deprecated API in order to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
+
+# You can also make your code fail to compile if you use deprecated APIs.
+# In order to do so, uncomment the following line.
+# You can also select to disable deprecated APIs only up to a certain version of Qt.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+CONFIG += c++11
+
+SOURCES += \
+        main.cpp \
+        ExMyStyle.cpp
+
+HEADERS += \
+        ExMyStyle.h
+
+# Default rules for deployment.
+qnx: target.path = /tmp/$${TARGET}/bin
+else: unix:!android: target.path = /opt/$${TARGET}/bin
+!isEmpty(target.path): INSTALLS += target

QtMyStyleEx/main.cpp

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+/*
+ * Author:  touwoyimuli <touwoyimuli@gmai.com>
+ * blogs:   https://touwoyimuli.github.io/
+ *
+ *             Copyright 2019 touwoyimuli
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "ExMyStyle.h"
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    ExMyStyle w;
+    w.show();
+
+    return a.exec();
+}