小編給大家分享一下Python如何實現(xiàn)學生信息管理系統(tǒng)，相信大部分人都還不怎么了解，因此分享這篇文章給大家參考一下，希望大家閱讀完這篇文章后大有收獲，下面讓我們一起去了解一下吧！
1.使用游標的方法連接、增、刪、改、查數(shù)據(jù)庫；
2.一般二級菜單是不能直接退出程序的，所以去掉了二級菜單退出程序的功能；
3.增加了連表查詢；
4.但是還有一點很不滿意，就是每次退出后都退出到主菜單而不是當前菜單，這點還沒改好，希望小伙伴能一起學習交流！
重慶分公司
重慶分公司
#-*- coding:utf-8 -*-
import sqlite3
#打開本地數(shù)據(jù)庫用于存儲用戶信息
cx = sqlite3.connect('student.db')
#在該數(shù)據(jù)庫下創(chuàng)建學生信息表
cx.execute ('''CREATE TABLE StudentTable(
ID INTEGER PRIMARY KEY AUTOINCREMENT,
StuId INTEGER NOT NULL,
NAME TEXT NOT NULL,
CLASS INT NOT NULL);''')
print "Table created successfully";
#在該數(shù)據(jù)庫下創(chuàng)建課程信息表
cx.execute ('''CREATE TABLE CourseTable(
ID INTEGER PRIMARY KEY AUTOINCREMENT,
CourseId INT NOT NULL,
Name TEXT NOT NULL,
Teacher TEXT NOT NULL,
Classroom TEXT NOT NULL,
StartTime CHAR(11) NOT NULL,
EndTime CHAR(11) NOT NULL);''')
print "Table created successfully";
#在該數(shù)據(jù)庫下創(chuàng)建選課情況信息表
cx.execute ('''CREATE TABLE XuankeTable(
ID INTEGER PRIMARY KEY AUTOINCREMENT,
StuId INT NOT NULL,
CourseId INT NOT NULL);''')
print "Table created successfully";
#以上三個表創(chuàng)建完后，再次運行程序時，需要把三個建表代碼注釋掉，否則會提示:該表已存在。即建表只需建一次。
def insert_stu():#錄入學生信息
cu = cx.cursor()
stu_id = input("請輸入學生學號:")
cu.execute("SELECT StuId from StudentTable where StuId = '%s';"%stu_id)
row = cu.fetchone()
if row:
print "sorry,該學號已存在,請重新輸入"
else:
stu_name = raw_input("請輸入學生姓名:")
stu_class = input("請輸入學生班級:")
sql1 = "INSERT INTO StudentTable(StuId,NAME,CLASS)"
sql1 += " VALUES(%d,'%s',%d);"%(stu_id,stu_name,stu_class)
cu.execute(sql1)
cx.commit()
print "恭喜你,學生錄入成功!"
cu.close()
def xuanke():#學生選課
cu = cx.cursor()
stu_id = input('請輸入要選課的學生學號:')
sql2 = "select StuId from StudentTable where StuId = %d;"%(stu_id)
cu.execute(sql2)
row = cu.fetchone()
if row:
sql3 = "select CourseId,Name,Teacher,Classroom, StartTime,EndTime from CourseTable"
cu.execute(sql3)
rows = cu.fetchall()
for row in rows:
print "CourseId = ", row[0]
print "Name = ", row[1]
print "Teacher = ", row[2]
print "Classroom = ",row[3]
print "StartTime = ",row[4]
print "EndTime = ",row[5], "\n"
cou_id = input("請輸入要選的課程號:")
sql0 = "select CourseId from CourseTable where CourseId =%d;"%(cou_id)
cu.execute(sql0)
row = cu.fetchone()
if row:
sql = "select StuId CourseId from XuankeTable "
sql += "where CourseId = %d and StuId=%d;"%(cou_id,stu_id)
cu.execute(sql)
rows = cu.fetchone()
if row:
print "該課程已選,不能重復(fù)選課!"
break
else:
sql3 = "insert into XuankeTable (StuId,CourseId) values (%d,%d)"%(stu_id,cou_id)
cu.execute(sql3)
cx.commit()
print "恭喜你，選課成功!"
else:
print "sorry,該課程不存在!"
else:
print "sorry,沒有該學生號"
cu.close()
def stu_id_search():#按照學生學號查詢學生信息
cu = cx.cursor()
search_stu_id = input("請輸入要查詢的學號:")
sql4 = "SELECT ID,StuId,NAME, CLASS from StudentTable "
sql4 += "where StuId= %d;" % (search_stu_id)
cu.execute(sql4)
row = cu.fetchone()
if row:
print
print "您要查詢的學生信息為:"
print "ID = ", row[0]
print "StuId = ", row[1]
print "NAME = ", row[2]
print "CLASS = ",row[3], "\n"
else:
print "sorry,沒有該學生信息！"
cu.close()
def stu_id_cou():#按照學生學號查詢該學生所選課程
cu = cx.cursor()
stu_id = input("請輸入要查詢學生號:")
sql5 = "select StuId from StudentTable where StuId = %d;"%(stu_id)
cu.execute(sql5)
row = cu.fetchone()
if row :
sql6 = "select A.*,B.*,C.* from XuankeTable A, CourseTable B, StudentTable C \
where A.StuId = %d and A.CourseId=B.CourseId and A.StuId=C.StuId"%(stu_id)#連表查詢
cu.execute(sql6)
rows = cu.fetchall()
for row in rows:
print "該學生所選課程為:"
print "StuId=",row[1]
print "CourseId=",row[2]
print "Name = ", row[7]
print "Teacher = ", row[8]
print "Classroom = ",row[9]
print "StartTime = " ,row[10]
print "EndTime = ",row[11],"\n"
print
else:
print "sorry,沒有該學生選課信息!"
cu.close()
def cou_id_search(): #按照課程號查詢課程信息
cu = cx.cursor()
cou_id = input("請輸入要查詢的課程號:")
sql7 = "select CourseId ,Name,Teacher,Classroom,StartTime,EndTime from CourseTable "
sql7 += "where CourseId = %d;"%(cou_id)
cu.execute(sql7)
row = cu.fetchone()
if row:
print "您要查詢的課程信息為:"
print "CourseId = ",row[0]
print "Name = ", row[1]
print "Teacher = ", row[2]
print "Classroom = ",row[3]
print "StartTime = " ,row[4]
print "EndTime = ",row[5],"\n"
else:
print "sorry,沒有該課程信息!"
cu.close()
def cou_id_stu():#按照課程號查詢選擇該課程的學生列表
cu = cx.cursor()
cou_id = input('請輸入課程號:')
sql8 = "select CourseId from XuankeTable where CourseId =%d;"%(cou_id)
cu.execute(sql8)
row = cu.fetchone()
if row:
sql9 = "select A.*,B.*,C.* from XuankeTable A, CourseTable B, StudentTable C \
where A.CourseId = %d and A.CourseId=B.CourseId and A.StuId=C.StuId"%(cou_id)
cu.execute(sql9)
rows = cu.fetchall()
for row in rows:
print
print "選擇該課程的學生為:"
print "StuId = ", row[1]
print "CourseId = ", row[2]
print "NAME = ", row[14]
print "CLASS = ",row[15],"\n"
else:
print "sorry,沒有該課程信息!"
cu.close()
def menu():
print '1.進入學生信息系統(tǒng)(學生信息錄入)'
print '2.進入學生選課系統(tǒng)(學生選課操作)'
print '3.進入學生選課信息系統(tǒng)(學生信息查詢和選課情況查詢)'
print '4.退出程序'
def student():
print '1.錄入學生信息'
print '2.返回主菜單'
def Course():
print '1.開始選課'
print '2.返回主菜單'
def information():
print '1.按學號查詢學生信息'
print '2.按學號查看學生選課課程列表'
print '3.按課程號查看課程信息'
print '4.按課程號查看選課學生列表'
print '5.返回主菜單'
while True:
menu()
print
x = raw_input('請輸入您的選擇菜單號:')
if x == '1':
#進入學生信息系統(tǒng)
student()
stu = raw_input('您已進入學生錄入系統(tǒng),請再次輸入選擇菜單:')
print
if stu == '1':
insert_stu()
continue
if stu == '2':
continue
else:
print "輸入的選項不存在，請重新輸入！"
continue
if x == '2':
#進入選課信息系統(tǒng)
Course()
cou = raw_input('您已進入學生選課系統(tǒng),請再次輸入選擇菜單:')
print
if cou == '1':
xuanke()
continue
if cou == '2':
continue
else:
print "輸入的選項不存在，請重新輸入！"
continue
if x == '3':
#進入學生選課信息表
information()
inf = raw_input('您已進入學生選課信息系統(tǒng),請再次輸入選擇菜單:')
print
if inf == '1':
stu_id_search()
continue
if inf == '2':
stu_id_cou()
continue
if inf == '3':
cou_id_search()
continue
if inf == '4':
cou_id_stu()
continue
if inf == '5':
continue
else:
print "輸入的選項不存在，請重新輸入！"
continue
if x == '4':
print "謝謝使用！"
exit()
else:
print "輸入的選項不存在，請重新輸入！"
continue以上是“Python如何實現(xiàn)學生信息管理系統(tǒng)”這篇文章的所有內(nèi)容，感謝各位的閱讀！相信大家都有了一定的了解，希望分享的內(nèi)容對大家有所幫助，如果還想學習更多知識，歡迎關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道！
