PyQt5之打开文件夹

一、方法

1.单个文件打开

QFileDialog.getOpenFileName() 

2.多个文件打开

QFileDialog.getOpenFileNames() 

3.文件夹选取

QFileDialog.getExistingDirectory() 

4.文件保存

QFileDialog.getSaveFileName()

二、实例代码

import sys 
from PyQt5 import QtWidgets
from PyQt5.QtWidgets import QFileDialog
 
class MyWindow(QtWidgets.QWidget):
	def __init__(self):
		super(MyWindow,self).__init__()
    	self.myButton = QtWidgets.QPushButton(self)
    	self.myButton.setObjectName("myButton")
    	self.myButton.setText("Test")
    	self.myButton.clicked.connect(self.msg)
 
  	def msg(self):
   		directory1 = QFileDialog.getExistingDirectory(self,
                  "选取文件夹",
                  "./")                 #起始路径
   		print(directory1)
 
    	fileName1, filetype = QFileDialog.getOpenFileName(self,
                  "选取文件",
                  "./",
                  "All Files (*);;Text Files (*.txt)")  #设置文件扩展名过滤,注意用双分号间隔
   		print(fileName1,filetype)
 
    	files, ok1 = QFileDialog.getOpenFileNames(self,
                  "多文件选择",
                  "./",
                  "All Files (*);;Text Files (*.txt)")
    	print(files,ok1)
 
    	fileName2, ok2 = QFileDialog.getSaveFileName(self,
                  "文件保存",
                  "./",
                  "All Files (*);;Text Files (*.txt)")
 
if __name__=="__main__": 
	app=QtWidgets.QApplication(sys.argv) 
	myshow=MyWindow()
	myshow.show()
	sys.exit(app.exec_())