这里我们使用QT中的QFileDialog类。
查找帮助文档,调用函数
QString QFileDialog::getOpenFileName(QWidget *parent =
Q_NULLPTR, const QString &caption =
QString(), const QString &dir =
QString(), const QString &filter =
QString(), QString *selectedFilter =
Q_NULLPTR, Options options =
Options())
例子:
QString fileName = QFileDialog::getOpenFileName(this, tr("Open File"),
"/home",
tr("Images (*.png *.xpm *.jpg)"));
第一个参数为this指针,第二个为标题栏题目,第三个为路径,第四个为类型文件。
The file dialog's working directory will be set to dir. If dir includes a file name, the file will be selected. Only files that match the given filter are shown. The filter selected is set to selectedFilter. The parameters dir, selectedFilter, and filter may be empty strings. If you want multiple filters, separate them with ';;', for example:
"Images (*.png *.xpm *.jpg);;Text files (*.txt);;XML files (*.xml)"注:
中文标题可以使用函数QString::fromLocal8Bit();