学生信息管理系统python版

Python  /  管理员 发布于 7年前   231

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 : [email protected]# @Site  :# @File  : 学生信息管理系统.py# @Software: PyCharmimport pymysqlimport datetimeimport 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。