mac平台下的QT国际化，多语言支持

Windows平台与Mac平台下qt国际化有点区别，cpp代码中含有tr字符则在
*name.pro 下增加

 TRANSLATIONS += Resource/multilanguage_zh.ts \

 Resource/multilanguage_en.ts

执行lupdate会生成一个multilanguage_zh.ts文件，linguist打开这个ts文件，进行翻译，生成qm文件，回到工程添加一个qrc资源文件，资源文件加载qm文件。main.cpp代码中加入：

QTranslator qtTranslator;
 qtTranslator.load(":/multilanguage_zh.qm");
 a.installTranslator(&qtTranslator);
编译即可显示中文了。其它语言同理

文件代码：

.pro

#-------------------------------------------------
#
# Project created by QtCreator 2018-01-17T09:36:03
#
#-------------------------------------------------

QT += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = MultiLanguage
TEMPLATE = app

# The following define makes your compiler emit warnings if you use
# any feature of Qt which as 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


SOURCES += \
 multilanguage.cpp \
 main.cpp

HEADERS += \
 multilanguage.h

FORMS += \
 multilanguage.ui
TRANSLATIONS += Resource/multilanguage_zh.ts \
 Resource/multilanguage_en.ts

RESOURCES += \
 translator.qrc

main.cpp

#include "multilanguage.h"
#include 
#include
#include

int main(int argc, char *argv[])
{

 QApplication a(argc, argv);
 QTranslator qtTranslator;
 qtTranslator.load(":/multilanguage_zh.qm");
 a.installTranslator(&qtTranslator);
 MultiLanguage w;
 w.show();

 return a.exec();
}

功能代码cpp

切记Qrc要加入qm文件，以及加载的时候加上":/qm文件名"