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。