Qt工程文件介绍

QT       += core gui            #Qt的两大核心模块，Qt gui和Qt core

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets     #Qt4之后，widgets模块从gui模块分离了出来，所以需要加上

CONFIG += c++11                 #支持C++11标准

# The following define makes your compiler emit warnings if you use
# any Qt feature that has been marked 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
#QT_DEPRECATED_WARNINGS表示当Qt的某些功能被标记为过时的，那么编译器会发出警告。例如

# You can also make your code fail to compile if it uses 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

SOURCES += \                    #使用\来连接，使得它们仍旧是一行语句，这和C++一样
    main.cpp \                  #SOURCES是源文件
    widget.cpp

HEADERS += \                    #HEADERS是头文件
    widget.h

TRANSLATIONS += \               #为了让Qt语言家识别中文
    test_zh_CN.ts

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target