PyQt5如何實現文件對話框

本篇內容主要講解“PyQt5如何實現文件對話框”，感興趣的朋友不妨來看看。本文介紹的方法操作簡單快捷，實用性強。下面就讓小編來帶大家學習“PyQt5如何實現文件對話框”吧!

文件對話框

文件對話框（QFileDialog）用于瀏覽文件并獲取文件路徑。

使用靜態方法獲取文件路徑

• 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 sys
from PyQt6.QtWidgets import QApplication
from PyQt6.QtWidgets import QWidget
from PyQt6.QtWidgets import QMainWindow
from PyQt6.QtWidgets import QFileDialog
from PyQt6.QtWidgets import QPushButton
from PyQt6.QtWidgets import QLabel
from PyQt6.QtWidgets import QLineEdit
from PyQt6.QtWidgets import QFormLayout
from PyQt6.QtGui import QPalette
from PyQt6.QtCore import Qt
 
 
class QFileDialogDemo(QMainWindow):
    """字體對話框"""
 
    def __init__(self):
        """構造函數"""
 
        super(QFileDialogDemo, self).__init__()
        self.init_ui()
 
    def init_ui(self):
        self.setWindowTitle("QColorDialogDemo")
        self.resize(400, 200)
 
        # 獲取中央控件
        self.centralwidget = QWidget()
        self.setCentralWidget(self.centralwidget)
 
        # 設置布局
        self.formlayout = QFormLayout()
        self.formlayout.setAlignment(Qt.AlignmentFlag.AlignCenter)
        self.centralwidget.setLayout(self.formlayout)
 
        # 添加標簽和按鈕
        self.label = QLabel("文件路徑：")
        self.ledit_filepath = QLineEdit()
        self.formlayout.addRow(self.label, self.ledit_filepath)
 
        self.btn_openfile = QPushButton("打開文件")
        self.btn_openfile.clicked.connect(self.openfile)
        self.formlayout.addWidget(self.btn_openfile)
 
    def openfile(self):
        """獲取顏色"""
        # filename->返回的文件路徑，filetypelist->設置的要打開的文件類型
        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__":
    """主程序運行"""
 
    app = QApplication(sys.argv)
    main = QFileDialogDemo()
    main.show()
    sys.exit(app.exec())

結果：

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