1. QT的安装
（1）双击：qt-opensource-windows-x86-mingw492-5.6.0.exe
（2）安装过程中指定QT Creator安装目录下的mingw文件夹
（3）设置环境变量：设安装在D:QT
①新建一个QTDIR的变量，其值为D:Qt5.6mingw49_32in;D:Qt5.6android_armv7in;D:Qt5.6android_x86in;D:QtToolsQtCreatorin，然后将该变量添加到Path中(%QTDIR%;……)
②添加变量QTLIB，并将其值设为D:Qt5.6mingw49_32lib; D:QtToolsQtCreatorlib
（4）设置关联
①运行：QT Creator
②工具→选项…→构建和运行
③选择：“Qt 版本”标签→手动设置→添加…→选择“D:Qt5.6mingw49_32inqmake.exe”
2. QT是什么
（1）QT是一套跨平台的GUI开发库
（2）QT是一套C++集成开发环境
（3）QT是一套开源的殿堂级架构技术教程
3. 通过命令行的方式编译QT源程序
（1）启动QT命令行
（2）进入源程序所在目录
（3）命令：
①qmake –project //根据目录中的源码生成工程文件
②qmake //根据工程文件生成makefile文件
③mingw32-make //根据makefile进行编译（旧版的用make编译）
【编程实验】编译和运行第一个QT程序
//main.cpp
#include <QApplication> #include <QMainWindow> #include <QPushButton> int main(int argc, char* argv[]) { QApplication a(argc, argv); QMainWindow w; QPushButton b(&w); b.setText("Hello QT!"); w.show(); return a.exec(); }
▲用命令行编译的步骤▲
①qmake –project （注意：红色部分是手工加上去的！加上编译选项后会自动生成，qmake -project " QT += widgets"）
###################################################################### # Automatically generated by qmake (3.0) ?? 4? 22 20:33:29 2016 ###################################################################### QT += core gui greaterThan(QT_MAJOR_VERSION, 4): QT += widgets TEMPLATE = app TARGET = HelloWorld INCLUDEPATH += . # Input SOURCES += main.cpp
②qmake 生成makefile
############################################################################# # Makefile for building: HelloWorld # Generated by qmake (3.0) (Qt 5.6.0) # Project: HelloWorld.pro # Template: app # Command: D:Qt5.6mingw49_32inqmake.exe -o Makefile HelloWorld.pro ############################################################################# MAKEFILE = Makefile first: release install: release-install uninstall: release-uninstall QMAKE = D:Qt5.6mingw49_32inqmake.exe DEL_FILE = del CHK_DIR_EXISTS= if not exist MKDIR = mkdir COPY = copy /y COPY_FILE = copy /y COPY_DIR = xcopy /s /q /y /i INSTALL_FILE = copy /y INSTALL_PROGRAM = copy /y INSTALL_DIR = xcopy /s /q /y /i DEL_FILE = del SYMLINK = $(QMAKE) -install ln -f -s DEL_DIR = rmdir MOVE = move SUBTARGETS = release debug release: FORCE $(MAKE) -f $(MAKEFILE).Release release-make_first: FORCE $(MAKE) -f $(MAKEFILE).Release release-all: FORCE $(MAKE) -f $(MAKEFILE).Release all release-clean: FORCE $(MAKE) -f $(MAKEFILE).Release clean release-distclean: FORCE $(MAKE) -f $(MAKEFILE).Release distclean release-install: FORCE $(MAKE) -f $(MAKEFILE).Release install release-uninstall: FORCE $(MAKE) -f $(MAKEFILE).Release uninstall debug: FORCE $(MAKE) -f $(MAKEFILE).Debug debug-make_first: FORCE $(MAKE) -f $(MAKEFILE).Debug debug-all: FORCE $(MAKE) -f $(MAKEFILE).Debug all debug-clean: FORCE $(MAKE) -f $(MAKEFILE).Debug clean debug-distclean: FORCE $(MAKE) -f $(MAKEFILE).Debug distclean debug-install: FORCE $(MAKE) -f $(MAKEFILE).Debug install debug-uninstall: FORCE $(MAKE) -f $(MAKEFILE).Debug uninstall Makefile: HelloWorld.pro D:/Qt/5.6/mingw49_32/mkspecs/win32-g++/qmake.conf D:/Qt/5.6/mingw49_32/mkspecs/features/spec_pre.prf D:/Qt/5.6/mingw49_32/mkspecs/qdevice.pri D:/Qt/5.6/mingw49_32/mkspecs/features/device_config.prf D:/Qt/5.6/mingw49_32/mkspecs/common/angle.conf D:/Qt/5.6/mingw49_32/mkspecs/qconfig.pri D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dcore.pri D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dcore_private.pri D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dinput.pri D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dinput_private.pri D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dlogic.pri D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dlogic_private.pri D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dquick.pri D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dquick_private.pri D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dquickinput.pri D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dquickinput_private.pri D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dquickrender.pri D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dquickrender_private.pri D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3drender.pri D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3drender_private.pri D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_axbase.pri D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_axbase_private.pri D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_axcontainer.pri 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D:/Qt/5.6/mingw49_32/mkspecs/features/warn_on.prf D:/Qt/5.6/mingw49_32/mkspecs/features/qt.prf D:/Qt/5.6/mingw49_32/mkspecs/features/resources.prf D:/Qt/5.6/mingw49_32/mkspecs/features/moc.prf D:/Qt/5.6/mingw49_32/mkspecs/features/win32/opengl.prf D:/Qt/5.6/mingw49_32/mkspecs/features/uic.prf D:/Qt/5.6/mingw49_32/mkspecs/features/win32/windows.prf D:/Qt/5.6/mingw49_32/mkspecs/features/testcase_targets.prf D:/Qt/5.6/mingw49_32/mkspecs/features/exceptions.prf D:/Qt/5.6/mingw49_32/mkspecs/features/yacc.prf D:/Qt/5.6/mingw49_32/mkspecs/features/lex.prf HelloWorld.pro D:/Qt/5.6/mingw49_32/lib/qtmain.prl D:/Qt/5.6/mingw49_32/lib/Qt5Widgets.prl D:/Qt/5.6/mingw49_32/lib/Qt5Gui.prl D:/Qt/5.6/mingw49_32/lib/Qt5Core.prl $(QMAKE) -o Makefile HelloWorld.pro D:/Qt/5.6/mingw49_32/mkspecs/features/spec_pre.prf: D:/Qt/5.6/mingw49_32/mkspecs/qdevice.pri: D:/Qt/5.6/mingw49_32/mkspecs/features/device_config.prf: D:/Qt/5.6/mingw49_32/mkspecs/common/angle.conf: D:/Qt/5.6/mingw49_32/mkspecs/qconfig.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dcore.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dcore_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dinput.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dinput_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dlogic.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dlogic_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dquick.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dquick_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dquickinput.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dquickinput_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dquickrender.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3dquickrender_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3drender.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_3drender_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_axbase.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_axbase_private.pri: 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D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_nfc.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_nfc_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_opengl.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_opengl_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_openglextensions.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_openglextensions_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_platformsupport_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_positioning.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_positioning_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_printsupport.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_printsupport_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_qml.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_qml_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_qmldevtools_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_qmltest.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_qmltest_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_qtmultimediaquicktools_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_quick.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_quick_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_quickparticles_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_quickwidgets.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_quickwidgets_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_script.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_script_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_scripttools.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_scripttools_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_sensors.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_sensors_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_serialbus.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_serialbus_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_serialport.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_serialport_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_sql.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_sql_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_svg.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_svg_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_testlib.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_testlib_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_uiplugin.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_uitools.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_uitools_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_webchannel.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_webchannel_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_websockets.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_websockets_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_widgets.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_widgets_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_winextras.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_winextras_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_xml.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_xml_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_xmlpatterns.pri: D:/Qt/5.6/mingw49_32/mkspecs/modules/qt_lib_xmlpatterns_private.pri: D:/Qt/5.6/mingw49_32/mkspecs/features/qt_functions.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/qt_config.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/win32/qt_config.prf: D:/Qt/5.6/mingw49_32/mkspecs/win32-g++/qmake.conf: D:/Qt/5.6/mingw49_32/mkspecs/features/spec_post.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/exclusive_builds.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/default_pre.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/win32/default_pre.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/resolve_config.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/exclusive_builds_post.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/default_post.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/win32/rtti.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/precompile_header.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/warn_on.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/qt.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/resources.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/moc.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/win32/opengl.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/uic.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/win32/windows.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/testcase_targets.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/exceptions.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/yacc.prf: D:/Qt/5.6/mingw49_32/mkspecs/features/lex.prf: HelloWorld.pro: D:/Qt/5.6/mingw49_32/lib/qtmain.prl: D:/Qt/5.6/mingw49_32/lib/Qt5Widgets.prl: D:/Qt/5.6/mingw49_32/lib/Qt5Gui.prl: D:/Qt/5.6/mingw49_32/lib/Qt5Core.prl: qmake: FORCE @$(QMAKE) -o Makefile HelloWorld.pro qmake_all: FORCE make_first: release-make_first debug-make_first FORCE all: release-all debug-all FORCE clean: release-clean debug-clean FORCE distclean: release-distclean debug-distclean FORCE -$(DEL_FILE) Makefile release-mocclean: $(MAKE) -f $(MAKEFILE).Release mocclean debug-mocclean: $(MAKE) -f $(MAKEFILE).Debug mocclean mocclean: release-mocclean debug-mocclean release-mocables: $(MAKE) -f $(MAKEFILE).Release mocables debug-mocables: $(MAKE) -f $(MAKEFILE).Debug mocables mocables: release-mocables debug-mocables check: first FORCE: $(MAKEFILE).Release: Makefile $(MAKEFILE).Debug: Makefile
③ming32-make 进行编译
4. QT Creator
（1）可视化的集成开发环境
①QT Creator提供了强大的代码编辑功能
②QT Creator提供了强大的调试功能
（2）调试的基本方法
①Log调试法：在代码加入一定的打印语句，打印程序状态和关键变量的值。
//包含头文件：#include <QDebug>
//调试输出：qDebug() << i; //在“应用程序输出”窗口中可观察输出的结果
②断点调试法：条件断点，如i == 7
【编程实验】QT Creator使用初体验（对上个项目进行调试，此处省略程序源码…）
5. 小结
（1）QT是一套跨平台的C++界面开发库
（2）可以通过命令行的方式开发QT应用程序
（3）也可以通过QT Creator进行QT开发
（4）QT Creator同时支持Log调试法和断点调试法