QT 获取各种路径

小咪咪 2022-12-29 09:29 300阅读 0赞

在QT开发中，总是绕不开需要获取各种路径，本文整理了常用的路径获取，代码如下：

#include <QtCore/QCoreApplication>
    #include <QDebug>
    #include <QDir>
    #include <QStandardPaths>
    
    int main(int argc, char *argv[])
    { 
        QCoreApplication a(argc, argv);
    
    	//获取程序所在路径
    	QString applicationDirPath = QCoreApplication::applicationDirPath();
    	qDebug() << "applicationDirPath=" << applicationDirPath;
    
    	//程序的完整路径
    	QString applicationFilePath = qApp->applicationFilePath();
    	qDebug() << "applicationFilePath=" << applicationFilePath;
    
    	//当前工作目录
    	QString currentPath = QDir::currentPath();
    	qDebug() << "currentPath=" << currentPath;
    
    	//用户目录路径
    	QString HomeLocation = QStandardPaths::writableLocation(QStandardPaths::HomeLocation);
    	qDebug() << "HomeLocation=" << HomeLocation;
    
    	QStringList HomeLocation2 = QStandardPaths::standardLocations(QStandardPaths::HomeLocation);
    	qDebug() << "HomeLocation2=" << HomeLocation2[0];
    
    	//我的文档路径
    	QString DocumentsLocation = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
    	qDebug() << "DocumentsLocation=" << DocumentsLocation;
    
    	QStringList DocumentsLocation2 = QStandardPaths::standardLocations(QStandardPaths::DocumentsLocation);
    	qDebug() << "DocumentsLocation2=" << DocumentsLocation2[0];
    
    	//桌面路径
    	QString DesktopLocation = QStandardPaths::writableLocation(QStandardPaths::DesktopLocation);
    	qDebug() << "DesktopLocation=" << DesktopLocation;
    
    	QStringList DesktopLocation2 = QStandardPaths::standardLocations(QStandardPaths::DesktopLocation);
    	qDebug() << "DesktopLocation2=" << DesktopLocation2[0];
    
    	//程序数据存放路径
    	QString AppDataLocation = QStandardPaths::writableLocation(QStandardPaths::AppDataLocation);
    	qDebug() << "AppDataLocation=" << AppDataLocation;
    
    	QStringList AppDataLocation2 = QStandardPaths::standardLocations(QStandardPaths::AppDataLocation);
    	qDebug() << "AppDataLocation2=" << AppDataLocation2[0];
    
    	/*Qt5.5 中引入了另一种方法*/
    	QString AppConfigLocation = QStandardPaths::writableLocation(QStandardPaths::AppConfigLocation);
    	qDebug() << "AppConfigLocation=" << AppConfigLocation;
    
    	QStringList AppConfigLocation2 = QStandardPaths::standardLocations(QStandardPaths::AppConfigLocation);
    	qDebug() << "AppConfigLocation2=" << AppConfigLocation2[0];
    
    	//临时文件路径
    	QString TempLocation = QStandardPaths::writableLocation(QStandardPaths::TempLocation);
    	qDebug() << "TempLocation=" << TempLocation;
    
    	QStringList TempLocation2 = QStandardPaths::standardLocations(QStandardPaths::TempLocation);
    	qDebug() << "TempLocation2=" << TempLocation2[0];
    
    	//更传统的方法是利用QDir的一个静态函数tempPath()
    	QString tempPath  = QDir::tempPath();
    	qDebug() << "tempPath=" << tempPath;
    
    	system("pause");
        return a.exec();
    }

输出结果如下：

applicationDirPath= "C:/Users/Administrator/Desktop/QtPathsTest/Debug"
    applicationFilePath= "C:/Users/Administrator/Desktop/QtPathsTest/Debug/QtPathsTest.exe"
    currentPath= "C:/Users/Administrator/Desktop/QtPathsTest/QtPathsTest"
    HomeLocation= "C:/Users/Administrator"
    HomeLocation2= "C:/Users/Administrator"
    DocumentsLocation= "C:/Users/Administrator/Documents"
    DocumentsLocation2= "C:/Users/Administrator/Documents"
    DesktopLocation= "C:/Users/Administrator/Desktop"
    DesktopLocation2= "C:/Users/Administrator/Desktop"
    AppDataLocation= "C:/Users/Administrator/AppData/Roaming/QtPathsTest"
    AppDataLocation2= "C:/Users/Administrator/AppData/Roaming/QtPathsTest"
    AppConfigLocation= "C:/Users/Administrator/AppData/Local/QtPathsTest"
    AppConfigLocation2= "C:/Users/Administrator/AppData/Local/QtPathsTest"
    TempLocation= "C:/Users/Administrator/AppData/Local/Temp"
    TempLocation2= "C:/Users/Administrator/AppData/Local/Temp"
    tempPath= "C:/Users/Administrator/AppData/Local/Temp"