PyQt5如何实现文件对话框

本篇内容主要讲解“PyQt5如何实现文件对话框”，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习“PyQt5如何实现文件对话框”吧!

文件对话框

文件对话框（QFileDialog）用于浏览文件并获取文件路径。

使用静态方法获取文件路径

• getSaveFileName(parent: typing.Optional[QWidget] = ..., caption: str = ..., directory: str = ..., filter: str = ..., initialFilter: str = ..., options: 'QFileDialog.Option' = ...) -> typing.Tuple[str, str]: ...

• getOpenFileNames(parent: typing.Optional[QWidget] = ..., caption: str = ..., directory: str = ..., filter: str = ..., initialFilter: str = ..., options: 'QFileDialog.Option' = ...) -> typing.Tuple[typing.List[str], str]: ...

• getOpenFileName(parent: typing.Optional[QWidget] = ..., caption: str = ..., directory: str = ..., filter: str = ..., initialFilter: str = ..., options: 'QFileDialog.Option' = ...) -> typing.Tuple[str, str]: ...

• getExistingDirectoryUrl(parent: typing.Optional[QWidget] = ..., caption: str = ..., directory: QtCore.QUrl = ..., options: 'QFileDialog.Option' = ..., supportedSchemes: typing.Iterable[str] = ...) -> QtCore.QUrl: ...

• getExistingDirectory(parent: typing.Optional[QWidget] = ..., caption: str = ..., directory: str = ..., options: 'QFileDialog.Option' = ...) -> str: ...

示例：

# _*_ coding:utf-8 _*_ import sysfrom PyQt6.QtWidgets import QApplicationfrom PyQt6.QtWidgets import QWidgetfrom PyQt6.QtWidgets import QMainWindowfrom PyQt6.QtWidgets import QFileDialogfrom PyQt6.QtWidgets import QPushButtonfrom PyQt6.QtWidgets import QLabelfrom PyQt6.QtWidgets import QLineEditfrom PyQt6.QtWidgets import QFormLayoutfrom PyQt6.QtGui import QPalettefrom PyQt6.QtCore import Qt  class QFileDialogDemo(QMainWindow):    """字体对话框"""     def __init__(self):        """构造函数"""         super(QFileDialogDemo, self).__init__()        self.init_ui()     def init_ui(self):        self.setWindowTitle("QColorDialogDemo")        self.resize(400, 200)         # 获取中央控件        self.centralwidget = QWidget()        self.setCentralWidget(self.centralwidget)         # 设置布局        self.formlayout = QFormLayout()        self.formlayout.setAlignment(Qt.AlignmentFlag.AlignCenter)        self.centralwidget.setLayout(self.formlayout)         # 添加标签和按钮        self.label = QLabel("文件路径：")        self.ledit_filepath = QLineEdit()        self.formlayout.addRow(self.label, self.ledit_filepath)         self.btn_openfile = QPushButton("打开文件")        self.btn_openfile.clicked.connect(self.openfile)        self.formlayout.addWidget(self.btn_openfile)     def openfile(self):        """获取颜色"""        # filename->返回的文件路径，filetypelist->设置的要打开的文件类型        filename, filetypelist = QFileDialog.getOpenFileName(            self, "Open File", r"D:\Desktop", "文本文件(*.txt *.csv)")        self.ledit_filepath.setText(filename + ";" + filetypelist) if __name__ == "__main__":    """主程序运行"""     app = QApplication(sys.argv)    main = QFileDialogDemo()    main.show()    sys.exit(app.exec())

结果：

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