1. Modules involved

• datetime

• os

• random

• sys

• PyQt5

2. Running effect

Support function ：

• Add information

• Modify the information

• Delete the information

• Query information

• File storage data , Each run will load the information before the display

3. Part of the source code

# Create a font object , Used to set the text to be displayed font = QtGui.QFont()font.setFamily(" In black ")font.setPointSize(12)
# full name label_name = QLabel(self)label_name.setGeometry(40, 30, 54, 16)label_name.setText(" full name ：")label_name.setFont(font)self.line_edit_name = QLineEdit(self)self.line_edit_name.setGeometry(90, 30, 141, 20)
# Gender label_gender = QLabel(self)label_gender.setGeometry(270, 30, 54, 16)label_gender.setFont(font)label_gender.setText(" Gender ：")self.line_edit_gender = QComboBox(self)self.line_edit_gender.setGeometry(340, 30, 201, 20)self.line_edit_gender.addItems([' male ', ' Woman '])
# Id card label_id = QLabel(self)label_id.setGeometry(580, 30, 54, 16)label_id.setFont(font)label_id.setText(" Id card ：")self.line_edit_id = QLineEdit(self)self.line_edit_id.setGeometry(660, 30, 221, 20)
# Address label_addr = QLabel(self)label_addr.setGeometry(40, 110, 54, 16)label_addr.setFont(font)label_addr.setText(" Address ：")self.line_edit_addr = QLineEdit(self)self.line_edit_addr.setGeometry(92, 110, 141, 20)
# Telephone label_phone = QLabel(self)label_phone.setGeometry(270, 70, 54, 16)label_phone.setFont(font)label_phone.setText(" Telephone :")self.line_edit_phone = QLineEdit(self)self.line_edit_phone.setGeometry(340, 70, 201, 20)

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