update

QtQSliderEx/ExQSlider.cpp

@@ -7,6 +7,7 @@ ExQSlider::ExQSlider(QWidget *parent) :
     ui(new Ui::ExQSlider)
 {
     ui->setupUi(this);
+	setWindowTitle(QObject::tr("QSlider的用法"));
 
     //设置QSlider的最大值为255  (默认范围为0~100)
     ui->sliderRed->setMaximum(255);

QtQStringFunEx/ExQStringFun.cpp

@@ -6,6 +6,8 @@ ExQStringFun::ExQStringFun(QWidget* parent) :
     ui(new Ui::ExQStringFun)
 {
     ui->setupUi(this);
+
+    setWindowTitle(QObject::tr("QString类的一些常用函数"));
 }
 
 ExQStringFun::~ExQStringFun()

QtQdialQLCDEx/ExQdialQLCD.cpp

@@ -0,0 +1,44 @@
+#include "ExQdialQLCD.h"
+#include "ui_ExQdialQLCD.h"
+
+ExQdialQLCD::ExQdialQLCD(QWidget *parent) :
+    QWidget(parent),
+    ui(new Ui::ExQdialQLCD)
+{
+    ui->setupUi(this);
+
+    //notchesVisible:表盘的小刻度是否可见
+    //notchTarget：表盘刻度间间隔的像素值
+    connect(ui->dial, SIGNAL(valueChanged(int)), this, SLOT(onDisplayLCD(int)));
+	setWindowTitle(QObject::tr("QDial表盘输入，在LCD以多种进制显示"));
+}
+
+ExQdialQLCD::~ExQdialQLCD()
+{
+    delete ui;
+}
+
+void ExQdialQLCD::onDisplayLCD(int val)
+{
+    ui->lcdNumber->display(val);
+}
+
+void ExQdialQLCD::on_raidBtn2_clicked()   //设置LCD显示二进制数
+{
+    ui->lcdNumber->setBinMode();
+}
+
+void ExQdialQLCD::on_raidBtn8_clicked()   //设置LCD显示八进制数
+{
+    ui->lcdNumber->setOctMode();
+}
+
+void ExQdialQLCD::on_raidBtn10_clicked()  //设置LCD显示十进制数
+{
+    ui->lcdNumber->setDecMode();
+}
+
+void ExQdialQLCD::on_raidBtn16_clicked()  //设置LCD显示十六进制数
+{
+    ui->lcdNumber->setHexMode();
+}

QtQdialQLCDEx/ExQdialQLCD.h

@@ -0,0 +1,34 @@
+#ifndef EXQDIALQLCD_H
+#define EXQDIALQLCD_H
+
+#include <QWidget>
+
+namespace Ui {
+class ExQdialQLCD;
+}
+
+class ExQdialQLCD : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit ExQdialQLCD(QWidget *parent = nullptr);
+    ~ExQdialQLCD();
+
+public slots:
+    void onDisplayLCD(int val);
+
+private slots:
+    void on_raidBtn2_clicked();
+
+    void on_raidBtn8_clicked();
+
+    void on_raidBtn10_clicked();
+
+    void on_raidBtn16_clicked();
+
+private:
+    Ui::ExQdialQLCD *ui;
+};
+
+#endif // EXQDIALQLCD_H

QtQdialQLCDEx/ExQdialQLCD.ui

@@ -0,0 +1,79 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ExQdialQLCD</class>
+ <widget class="QWidget" name="ExQdialQLCD">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>537</width>
+    <height>149</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>ExQdialQLCD</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="0" column="0">
+    <layout class="QHBoxLayout" name="horizontalLayout" stretch="1,2">
+     <item>
+      <widget class="QDial" name="dial">
+       <property name="wrapping">
+        <bool>false</bool>
+       </property>
+       <property name="notchesVisible">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QLCDNumber" name="lcdNumber"/>
+     </item>
+    </layout>
+   </item>
+   <item row="0" column="1">
+    <widget class="QGroupBox" name="groupBox">
+     <property name="title">
+      <string>LCD进制显示</string>
+     </property>
+     <layout class="QVBoxLayout" name="verticalLayout">
+      <item>
+       <widget class="QRadioButton" name="raidBtn2">
+        <property name="text">
+         <string>二进制</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QRadioButton" name="raidBtn8">
+        <property name="text">
+         <string>八进制</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QRadioButton" name="raidBtn10">
+        <property name="text">
+         <string>十进制</string>
+        </property>
+        <property name="checked">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QRadioButton" name="raidBtn16">
+        <property name="text">
+         <string>十六进制</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <layoutdefault spacing="6" margin="11"/>
+ <resources/>
+ <connections/>
+</ui>

QtQdialQLCDEx/QtQdialQLCDEx.pro

@@ -0,0 +1,42 @@
+#-------------------------------------------------
+#
+# Project created by QtCreator 2019-08-22T21:45:53
+#
+#-------------------------------------------------
+
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET = QtQdialQLCDEx
+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 \
+        ExQdialQLCD.cpp
+
+HEADERS += \
+        ExQdialQLCD.h
+
+FORMS += \
+        ExQdialQLCD.ui
+
+RC_ICONS += QT_win_32x32.ico
+
+# Default rules for deployment.
+qnx: target.path = /tmp/$${TARGET}/bin
+else: unix:!android: target.path = /opt/$${TARGET}/bin
+!isEmpty(target.path): INSTALLS += target

QtQdialQLCDEx/main.cpp

@@ -0,0 +1,11 @@
+#include "ExQdialQLCD.h"
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    ExQdialQLCD w;
+    w.show();
+
+    return a.exec();
+}