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（QFileDialog）用于浏览文件并获取文件路径。
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 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：
到此，相信大家对“PyQt5如何实现文件对话框”有了更深的了解，不妨来实际操作一番吧！这里是亿速云网站，更多相关内容可以进入相关频道进行查询，关注我们，继续学习！
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