Record my course's task

0.base information

• language: Python
• Operating environment：pyqt5 , python 3

1.make a simple calculator

• function :
  • Addition, subtraction, multiplication, division
  • Power operation ，factorial ，Binary/Octal/Hex conversion，clear

2.make a Multiple document editor

• function :
  • Open , creat , save a text file
  • set font and font style
  • cut / paste / copy / find && replace / undo / redo
  • Multiple windows