qt05_db03.py

# -*- coding: utf-8 -*-

'''
    【简介】
	PyQt5中  处理database 例子
   
  
'''

import sys
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtSql import QSqlDatabase , QSqlQuery

def createDB():
    # 添加数据库
	db =  QSqlDatabase.addDatabase('QSQLITE')
	# 设置数据库名称
	db.setDatabaseName('./db/database.db')
	# 判断是否打开
	if not db.open():
		QMessageBox.critical(None,  ("Cannot open database"),
		("Unable to establish a database connection. \n"
		"This example needs SQLite support. Please read "
		"the Qt SQL driver documentation for information "
		"how to build it.\n\n"
		"Click Cancel to exit."),
		QMessageBox.Cancel)
		return False
		
	# 声明数据库查询对象
	query = QSqlQuery()
	# 创建表
	query.exec("create table student(id int primary key, name vchar, sex vchar, age int, deparment vchar)")
	
	#添加记录
	query.exec("insert into student values(1,'张三1','男',20,'计算机')")
	query.exec("insert into student values(2,'李四1','男',19,'经管')")
	query.exec("insert into student values(3,'王五1','男',22,'机械')")
	query.exec("insert into student values(4,'赵六1','男',21,'法律')")
	query.exec("insert into student values(5,'小明1','男',20,'英语')")
	query.exec("insert into student values(6,'小李1','女',19,'计算机')")
	query.exec("insert into student values(7,'小张1','男',20,'机械')")
	query.exec("insert into student values(8,'小刚1','男',19,'经管')")
	query.exec("insert into student values(9,'张三2','男',21,'计算机')")
	query.exec("insert into student values(10,'张三3','女',20,'法律')")
	query.exec("insert into student values(11,'王五2','男',19,'经管')")
	query.exec("insert into student values(12,'张三4','男',20,'计算机')")
	query.exec("insert into student values(13,'小李2','男',20,'机械')")
	query.exec("insert into student values(14,'李四2','女',19,'经管')")
	query.exec("insert into student values(15,'赵六3','男',21,'英语')")
	query.exec("insert into student values(16,'李四2','男',19,'法律')")
	query.exec("insert into student values(17,'小张2','女',22,'经管')")
	query.exec("insert into student values(18,'李四3','男',21,'英语')")
	query.exec("insert into student values(19,'小李3','女',19,'法律')")
	query.exec("insert into student values(20,'王五3','女',20,'机械')")
	query.exec("insert into student values(21,'张三4','男',22,'计算机')")
	query.exec("insert into student values(22,'小李2','男',20,'法律')")
	query.exec("insert into student values(23,'张三5','男',19,'经管')")
	query.exec("insert into student values(24,'小张3','女',20,'计算机')")
	query.exec("insert into student values(25,'李四4','男',22,'英语')")
	query.exec("insert into student values(26,'赵六2','男',20,'机械')")
	query.exec("insert into student values(27,'小李3','女',19,'英语')")
	query.exec("insert into student values(28,'王五4','男',21,'经管')")

	return True

if __name__ == '__main__':
	app =  QApplication(sys.argv)
	createDB() 
	sys.exit(app.exec_())