python pyqt5 QFileDialog 常用

getOpenFileName() getSaveFileName() setFileMode() setFilter()

-- coding: utf-8 --

''' 【简介】 PyQt5中 QFileDialog 例子

'''

import sys from PyQt5.QtCore import * from PyQt5.QtGui import * from PyQt5.QtWidgets import *

class filedialogdemo(QWidget): def init(self, parent=None): super(filedialogdemo, self).init(parent) layout = QVBoxLayout() self.btn = QPushButton("加载图片") self.btn.clicked.connect(self.getfile) layout.addWidget(self.btn) self.le = QLabel("") layout.addWidget(self.le) self.btn1 = QPushButton("加载文本文件") self.btn1.clicked.connect(self.getfiles) layout.addWidget(self.btn1) self.contents = QTextEdit() layout.addWidget(self.contents) self.setLayout(layout) self.setWindowTitle("File Dialog 例子")

def getfile(self):
    fname, _ = QFileDialog.getOpenFileName(self, 'Open file', 'c:\\', "Image files (*.jpg *.gif)")
    self.le.setPixmap(QPixmap(fname))

def getfiles(self):
    dlg = QFileDialog()
    dlg.setFileMode(QFileDialog.AnyFile)
    dlg.setFilter(QDir.Files)

    if dlg.exec_():
        filenames = dlg.selectedFiles()
        f = open(filenames[0], 'r')

        with f:
            data = f.read()
            self.contents.setText(data)

if name == 'main': app = QApplication(sys.argv) ex = filedialogdemo() ex.show() sys.exit(app.exec_())