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_())