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
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