qt04_QFileDialog.py

# -*- 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_())