1./转\（斜杠转反斜杠）函数

 [static] QString QDir::toNativeSeparators(const QString &pathName)

2./转\（斜杠转反斜杠）函数

[static] QString QDir::fromNativeSeparators(const QString &pathName)

下面测试典例：

    //获取应用程序的目录QString strCurrentApplicationDirPath=QCoreApplication::applicationDirPath();qDebug()<<strCurrentApplicationDirPath;/*将/转\（斜杠转反斜杠）*/QString strPath=QDir::toNativeSeparators(strCurrentApplicationDirPath);qDebug()<<strPath;/*将\转/（反斜杠转斜杠）*/QString strPath2=QDir::fromNativeSeparators(strPath);qDebug()<<strPath2;

调试输出如下：

"D:/QT5SourceCode/build-untitled-Desktop_Qt_5_12_5_MinGW_64_bit-Debug/debug"
"D:\\QT5SourceCode\\build-untitled-Desktop_Qt_5_12_5_MinGW_64_bit-Debug\\debug"
"D:/QT5SourceCode/build-untitled-Desktop_Qt_5_12_5_MinGW_64_bit-Debug/debug"