pyqt-选择文件/文件夹

• 选择文件夹：

  directory = QtWidgets.QFileDialog.getExistingDirectory(self, "getExistingDirectory", "./") 
  #当窗口非继承QtWidgets.QDialog时，self可替换成 None
  

• 选择文件：

  directory = QtWidgets.QFileDialog.getOpenFileName(self,
                "getOpenFileName","./",
                "All Files (*);;Text Files (*.txt)") 
  #当窗口非继承QtWidgets.QDialog时，self可替换成 None
  

• 选择多个文件

  directory = QtWidgets.QFileDialog.getOpenFileNames(self, self,
              "getOpenFileNames", "./",
              "All Files (*);;Text Files (*.txt)") 
  #当窗口非继承QtWidgets.QDialog时，self可替换成 None
  

• 设置保存文件名称路径

  directory = QtWidgets.QFileDialog.getSaveFileName(self, 
                "getSaveFileName","./",
                "All Files (*);;Text Files (*.txt)") 
  #当窗口非继承QtWidgets.QDialog时，self可替换成 None