学生信息管理系统python版


Posted in Python onOctober 17, 2018

本文实例为大家分享了python学生信息管理系统的具体代码,供大家参考,具体内容如下

#!/usr/bin/env python
# @Time  : 2018/3/30 17:37
# @Author : KiritoLiu
# @Contact : kiritoliuyhsky@gmail.com
# @Site  :
# @File  : 学生信息管理系统.py
# @Software: PyCharm
import pymysql
import datetime
import re
 
def CalAge(Date):
  #生日(年月日(数据库中的))转换为年龄
  if Date == "NULL":
    return "无"
  try:
    Date = Date.split('-')
    Birth = datetime.date(int(Date[0]), int(Date[1]), int(Date[2]))
    Today = datetime.date.today()
    if (Today.month > Birth.month):
      NextYear = datetime.date(Today.year + 1, Birth.month, Birth.day)
    elif (Today.month < Birth.month):
      NextYear = datetime.date(Today.year, Today.month + (Birth.month - Today.month), Birth.day)
    elif (Today.month == Birth.month):
      if (Today.day > Birth.day):
        NextYear = datetime.date(Today.year + 1, Birth.month, Birth.day)
      elif (Today.day < Birth.day):
        NextYear = datetime.date(Today.year, Birth.month, Today.day + (Birth.day - Today.day))
      elif (Today.day == Birth.day):
        NextYear = 0
    Age = Today.year - Birth.year
    if NextYear == 0: #如果今天就是生日
      return "%d" % (Age)
    else:
      DaysLeft = NextYear - Today
      return "%d" % (Age)
  except:
    return "错误"
 
def seesql():
  #查看学生表数据库
  db = pymysql.connect(host="localhost", user="root", password="123456", db="stu", charset="utf8")
  # 创建游标对象
  cursor = db.cursor()
  sql = "select s.sno,s.name,s.sex,s.cla,s.tel,s.birthday from stu s order by sno"
  # 用sno(学号)排序查看学生名单
  try:
    m = cursor.execute(sql)
    alist = cursor.fetchall()
    print("{:>3}|\t{:<4}\t|{}|\t{:<3}\t\t| {:<8}|{}| {}".format("学号", "姓名", "性别", "班级", "电话", "年龄", "出生日期"))
    for vo in alist:
      birth = vo[5]
      bir = birth.strftime("%Y-%m-%d")
      if bir == "1949-10-01":
        bir = "NULL"
      print("{:>5}|\t{:<4}\t| {} |\t{:<10}\t|{:<11}| {} | {}".format(vo[0], vo[1], vo[2], vo[3], vo[4], CalAge(bir), bir))
    db.commit()
  except Exception as err:
    db.rollback()
    print("SQL查看失败!错误:", err)
  db.close()
 
def seeone(a):
  #根据学号,查看某一条数据
  db = pymysql.connect(host="localhost", user="root", password="123456", db="stu", charset="utf8")
  # 创建游标对象
  cursor = db.cursor()
  stuid =int(a)
  sql = "select s.sno,s.name,s.sex,s.cla,s.tel,s.birthday from stu s where s.sno = '%d'" % stuid
  try:
    m = cursor.execute(sql)
    b = cursor.fetchone()
    if b == None:
      print("您的输入有误,将会退出系统")
      quit()
    else:
      print("{:>3}|\t{:<4}\t|{}|\t{:<3}\t\t| {:<8}|{}| {}".format("学号", "姓名", "性别", "班级", "电话", "年龄", "出生日期"))
      birth = b[5]
      bir = birth.strftime("%Y-%m-%d")
      if bir == "1949-10-01":
        bir = "NULL"
      print("{:>5}|\t{:<4}\t| {} |\t{:<10}\t|{:<11}| {:<2} | {}".format(b[0], b[1], b[2], b[3], b[4], CalAge(bir), bir))
    db.commit()
  except Exception as err:
    db.rollback()
    print("SQL查询失败!错误:", err)
  db.close()
 
def addmql():
  #添加一条数据
  db = pymysql.connect(host="localhost", user="root", password="123456", db="stu", charset="utf8")
  # 创建游标对象
  cursor = db.cursor()
  sql = "select s.sno from stu s"
  cursor.execute(sql)
  alist = cursor.fetchall()    #此处读取数据库中的所有学号
  blist = ()           #建立一个空的元组用于存放学号
  print("以下学号已被占用,不可使用:")
  for i in alist:
    blist += i         #存放所有的学号
    print(i[0], end=" ")    #输出已经被使用过的学号
  print()
  sno = int(input("请输入添加的学员的学号:\n"))
  if sno in blist:        #判断学号是否被使用过,学号不可以重复
    print("您输入的学号已被占用!系统即将退出!")
    quit()
  sname = input("请输入添加的学员的姓名:\n")
  sex = input("请输入添加的学员的性别(男or女):\n")
  if sex == "男" or sex == "女":
    sex = sex
  else:
    sex = "男"
    print("性别输入有误,已默认为男")
  cla = input("请输入添加的学员的班级(例:Python01):\n")
  tel = input("请输入添加的学员的电话:\n")
  if tel == re.search(r"(1[3456789]\d{9})", tel):
    tel = tel
    print("电话输入错误,已重置为空")
  else:
    tel = ""
  sbir = input("请输入添加的学员的出生日期(例:2001-1-1):\n")
  if sbir == re.search(r"(\d{4}-\d{1,2}-\d{1,2})", sbir):
    sbir = sbir
  else:
    sbir = "1949-10-01"
    print("出生日期输入错误,已重置为初始值")
  sql = "Insert into stu(sno,name,sex,cla,tel,birthday) values('%d', '%s', '%s', '%s', '%s', '%s')"%(sno, sname, sex, cla, tel, sbir)
  try:
    m = cursor.execute(sql)
    # 事务提交
    db.commit()
    print("成功添加条数:", m)
    print("您添加的信息为:")
    seeone(sno)
  except Exception as err:
    db.rollback()
    print("SQL添加失败!错误:", err)
  db.close()
 
def updatasql():
  #更新修改某条数据
  db = pymysql.connect(host="localhost", user="root", password="123456", db="stu", charset="utf8")
  # 创建游标对象
  cursor = db.cursor()
  stuid = int(input("请输入要修改的学员的学号:\n"))    # 一个班不超过100人,以stuid作为索引
  try:
    seeone(stuid)
    print("======可修改的学员信息的名称======")
    print("{0:2}{1:5}{2:5}{3:5}".format(" ", "1.姓名", "2.性别", "3.班级"))
    print("{0:2}{1:5}{2}".format(" ", "4.电话", "5.出生日期"))
    a = int(input("请选择要修改的学员信息的名称(学号不可修改):\n"))
    if a == 1:
      xm = input("请输入修改后的姓名:\n")
      sql = "UPDATE stu s SET s.name = '%s' WHERE s.sno = '%d'" % (xm, stuid)
    elif a == 2:
      xb = input("请输入修改后的性别(男or女):\n")
      if xb == "男" or xb == "女":
        xb = xb
      else:
        xb = "男"
        print("性别输入有误,已默认为男")
      sql = "UPDATE stu s SET s.sex = '%s' WHERE s.sno = '%d'" % (xb, stuid)
    elif a == 3:
      bj = input("请输入修改后的班级:\n")
      sql = "UPDATE stu s SET s.cla = '%s' WHERE s.sno = '%d'" % (bj, stuid)
    elif a == 4:
      dh = input("请输入修改后的电话:\n")
      sql = "UPDATE stu s SET s.tel = '%s' WHERE s.sno = '%d'" % (dh, stuid)
      if dh == re.search(r"(1[3456789]\d{9})", dh):
        '''正则表达式匹配判断输入是否合格'''
        dh = dh
      else:
        dh = ""
        print("电话输入错误,已重置为空")
    elif a == 5:
      birday = input("请输入修改后的出生日期(格式:2000-1-1):")
      if birday == re.search(r"(\d{4}-\d{1,2}-\d{1,2})", birday):
        '''正则表达式匹配判断输入是否合格'''
        birday = birday
      else:
        birday = "1949-10-01"
        print("出生日期输入错误,已重置为初始值")
      sql = "UPDATE stu s SET s.birthday = '%s' WHERE s.sno = '%d'" % (birday, stuid)
    else:
      print("您的输入有误,将会退出!") # 此处退出防止某些误操作导致的数据库数据泄露
      quit()
    cursor.execute(sql)
    db.commit()
    print("修改后的该学员信息为:")
    seeone(stuid)
  except Exception as err:
    db.rollback()
    print("SQL修改失败!错误:", err)
  db.close()
 
def delsql():
  #删除某条学生数据
  db = pymysql.connect(host="localhost", user="root", password="123456", db="stu", charset="utf8")
  # 创建游标对象
  cursor = db.cursor()
  stuid = int(input("请输入要删除的学员的学号:\n")) # 一个班不超过100人,以stuid作为索引
  try:
    print("======即将删除的学员信息的名称======")
    seeone(stuid)
    a = input("请确认是否删除该学员信息(y/n):\n")
    if a == 'y' or a == 'Y':
      sql = "delete from stu where sno = '%d'"%(stuid)
      cursor.execute(sql)
    else:
      print("取消学员信息删除,即将退出系统")
      quit()
    db.commit()
    print("该学员信息已删除")
  except Exception as err:
    db.rollback()
    print("SQL删除失败!错误:", err)
  db.close()
 
def mainstu():
  while True:
    # 输出初始界面
    print("=" * 12, "学员信息管理系统", "=" * 15)
    print("{0:2}{1:13}{2:15}".format(" ", "1.查看学员信息", "2.添加学员信息"))
    print("{0:2}{1:13}{2:15}".format(" ", "3.修改学员信息", "4.删除学员信息"))
    print("{0:2}{1:13}".format(" ", "5.退出系统"))
    print("=" * 45)
    key = int(input("请输入对应的选择:\n"))
    # 根据键盘值判断并进行操作
    if key == 1:
      print("=" * 12, "学员信息浏览", "=" * 15)
      seesql()
      input("按回车继续")
    elif key == 2:
      print("=" * 12, "学员信息添加", "=" * 15)
      addmql()
      input("按回车继续")
    elif key == 3:
      print("=" * 12, "学员信息修改", "=" * 15)
      seesql()
      updatasql()
      input("按回车继续")
    elif key == 4:
      print("=" * 12, "学员信息删除", "=" * 15)
      seesql()
      delsql()
      input("按回车继续")
    elif key == 5:
      print("=" * 12, "再见", "=" * 12)
      quit()
    else:
      print("=" * 12, "您的输入有误,请重新输入", "=" * 12)
 
mainstu()

配套的数据库文件,内含数据

-- MySQL dump 10.13 Distrib 5.7.12, for Win64 (x86_64)
--
-- Host: localhost  Database: stu
-- ------------------------------------------------------
-- Server version 5.7.17-log
 
/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8 */;
/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
/*!40103 SET TIME_ZONE='+00:00' */;
/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
 
--
-- Table structure for table `stu`
--
 
DROP TABLE IF EXISTS `stu`;
/*!40101 SET @saved_cs_client   = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `stu` (
 `id` int(3) NOT NULL AUTO_INCREMENT,
 `sno` int(3) NOT NULL,
 `name` varchar(20) NOT NULL,
 `sex` varchar(1) NOT NULL,
 `cla` varchar(10) NOT NULL,
 `tel` varchar(11) DEFAULT NULL,
 `birthday` datetime DEFAULT NULL,
 PRIMARY KEY (`id`),
 UNIQUE KEY `stu_no_UNIQUE` (`sno`)
) ENGINE=InnoDB AUTO_INCREMENT=32 DEFAULT CHARSET=utf8;
/*!40101 SET character_set_client = @saved_cs_client */;
 
--
-- Dumping data for table `stu`
--
 
LOCK TABLES `stu` WRITE;
/*!40000 ALTER TABLE `stu` DISABLE KEYS */;
INSERT INTO `stu` VALUES (1,1,'张三','男','Python01','12345678910','1999-01-01 00:00:00'),(2,2,'李四','男','Python01','18866668888','1996-12-06 00:00:00'),(3,3,'王五','男','Python02','12345665410','1996-11-27 00:00:00'),(4,4,'赵六','女','Python02','12332233210','1997-10-24 00:00:00'),(5,5,'qq01','女','Python03','13322223322','1990-01-31 00:00:00'),(6,6,'qq02','男','Python03','12288886666','1992-02-20 00:00:00'),(7,7,'qq03','女','Python03','13579264801','2000-10-30 00:00:00'),(8,8,'uu01','男','Python01','18898084886','1998-08-08 00:00:00'),(9,9,'uu02','女','Python02','12022000022','1994-04-01 00:00:00'),(10,10,'aa','女','Python02','18899998888','2004-04-04 00:00:00'),(11,11,'bb','男','Python03','19264664234','1995-05-15 00:00:00'),(25,12,'uu10','男','Python04','17788992332','1996-12-06 00:00:00'),(28,13,'uu10','女','Python04','13571854999','1996-12-06 00:00:00');
/*!40000 ALTER TABLE `stu` ENABLE KEYS */;
UNLOCK TABLES;
 
--
-- Dumping events for database 'stu'
--
 
--
-- Dumping routines for database 'stu'
--
/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;
 
/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;
 

-- Dump completed on 2018-03-31 15:10:58

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持三水点靠木。

Python 相关文章推荐
Python ORM框架SQLAlchemy学习笔记之映射类使用实例和Session会话介绍
Jun 10 Python
在Python中移动目录结构的方法
Jan 31 Python
python实现抖音视频批量下载
Jun 20 Python
符合语言习惯的 Python 优雅编程技巧【推荐】
Sep 25 Python
使用python根据端口号关闭进程的方法
Nov 06 Python
Empty test suite.(PyCharm程序运行错误的解决方法)
Nov 30 Python
Python numpy中矩阵的基本用法汇总
Feb 12 Python
Python使用__new__()方法为对象分配内存及返回对象的引用示例
Sep 20 Python
Python3 Tkinkter + SQLite实现登录和注册界面
Nov 19 Python
python中def是做什么的
Jun 10 Python
Python Selenium模块安装使用教程详解
Jul 09 Python
python全栈开发语法总结
Nov 22 Python
python 使用sys.stdin和fileinput读入标准输入的方法
Oct 17 #Python
Python实现Dijkstra算法
Oct 17 #Python
使用Python抓取豆瓣影评数据的方法
Oct 17 #Python
python 对key为时间的dict排序方法
Oct 17 #Python
解决python中os.listdir()函数读取文件夹下文件的乱序和排序问题
Oct 17 #Python
通过python将大量文件按修改时间分类的方法
Oct 17 #Python
python检测文件夹变化,并拷贝有更新的文件到对应目录的方法
Oct 17 #Python
You might like
打造计数器DIY三步曲(中)
2006/10/09 PHP
php preg_filter执行一个正则表达式搜索和替换
2012/02/27 PHP
巧用php中的array_filter()函数去掉多维空值的代码分享
2012/09/07 PHP
PHP模拟登陆163邮箱发邮件及获取通讯录列表的方法
2015/03/07 PHP
PHP实现从PostgreSQL数据库检索数据分页显示及根据条件查找数据示例
2018/06/09 PHP
Javascript中找到子元素在父元素内相对位置的代码
2012/07/21 Javascript
jquery动画4.升级版遮罩效果的图片走廊--带自动运行效果
2012/08/24 Javascript
基于jQuery实现模拟页面加载进度条
2013/04/01 Javascript
使用CSS和jQuery模拟select并附提交后取得数据的代码
2013/10/18 Javascript
javascript操作excel生成报表示例
2014/05/08 Javascript
JavaScript原生对象之String对象的属性和方法详解
2015/03/13 Javascript
javascript自定义in_array()函数实现方法
2015/08/03 Javascript
使用D3.js创建物流地图的示例代码
2018/01/27 Javascript
vue3.0 CLI - 2.6 - 组件的复用入门教程
2018/09/14 Javascript
JavaScript中AOP的实现与应用
2019/05/06 Javascript
JavaScript Math对象和调试程序的方法分析
2019/05/13 Javascript
vue打开其他项目页面并传入数据详解
2020/11/25 Vue.js
Python函数参数类型*、**的区别
2015/04/11 Python
Python 爬虫学习笔记之正则表达式
2016/09/21 Python
Flask框架的学习指南之制作简单blog系统
2016/11/20 Python
django创建最简单HTML页面跳转方法
2019/08/16 Python
pygame实现俄罗斯方块游戏(AI篇2)
2019/10/29 Python
Django通过dwebsocket实现websocket的例子
2019/11/15 Python
selenium+python实现自动登陆QQ邮箱并发送邮件功能
2019/12/13 Python
Win10下安装并使用tensorflow-gpu1.8.0+python3.6全过程分析(显卡MX250+CUDA9.0+cudnn)
2020/02/17 Python
Pycharm2020.1安装中文语言插件的详细教程(不需要汉化)
2020/08/07 Python
Opencv 图片的OCR识别的实战示例
2021/03/02 Python
手机端用rem+scss做适配的详解
2017/11/15 HTML / CSS
英国领先的互联网葡萄酒礼品商:Vintage Wine & Port
2019/05/24 全球购物
英国最大的独立摄影零售商:Park Cameras
2019/11/27 全球购物
暑期实习鉴定
2013/12/16 职场文书
经典优秀毕业生求职信范文分享
2013/12/18 职场文书
银行竞聘演讲稿
2014/05/16 职场文书
毕业赠语大全
2015/06/23 职场文书
2019年新郎保证书3篇
2019/10/17 职场文书
Python激活Anaconda环境变量的详细步骤
2021/06/08 Python