import pymysql
#import redis
#pool = redis.ConnectionPool(host='IP地址', port=6379, decode_responses=True)
 
while True:
 while True:
 # print('=' * 15)
 user = str(input('請(qǐng)輸入用戶名：'))
 passwd = str(input('請(qǐng)輸入密碼：'))
 # print('=' * 15)
 if passwd == 'root':
 print('=' * 20, '\n學(xué)生查詢系統(tǒng)\n'
  '1.學(xué)院類型信息\n')
 print('=' * 20)
 break
 else :
 print('--請(qǐng)重新輸入密碼--')
 
 num = int(input('請(qǐng)輸入功能相對(duì)應(yīng)的數(shù)字：'))
 print()
 
 db = pymysql.connect('IP地址','MySQL用戶名','MySQL密碼','數(shù)據(jù)庫(kù)', charset='utf8')
 cursor = db.cursor()
 if num == 1:
 sql = 'select type_id,name from school_type'
 cursor.execute(sql)
 results = cursor.fetchall()
 print('學(xué)院序號(hào) 學(xué)院名稱')
 for row in results:
 print(row)
 print()
 num1 = int(input('請(qǐng)輸入你想查看的學(xué)院對(duì)應(yīng)數(shù)字：'))
 while True:
 if num1 == 1:
 print('-' * 15,'\n1 查看該學(xué)院介紹\n'
  '2 查看該學(xué)院開設(shè)專業(yè)\n'
  '0 返回上一層')
 print('-' * 15)
 num2 = int(input('請(qǐng)輸入對(duì)應(yīng)功能的數(shù)字：'))
 if num2 == 1:
 sql1 = 'select name,introduction from school_type'
 cursor.execute(sql1)
 results1 = cursor.fetchall()
 print('學(xué)院名字 學(xué)院簡(jiǎn)介')
 for row1 in results1:
  print(row1)
 elif num2 == 2:
 sql2 = 'select * from eie'
 cursor.execute(sql2)
 results2 =cursor.fetchall()
 print('序號(hào) 名字 班級(jí)數(shù)量')
 for row2 in results2:
  print(row2)
 break
 num3 = int(input('請(qǐng)輸入想要查詢專業(yè)名前所對(duì)應(yīng)的數(shù)字：'))
 if num3 == 1:
 sql3 = 'select class_id,classname,number,manager from class join class_manager on(class.class_id = class_manager_id)'
 cursor.execute(sql3)
 results3 = cursor.fetchall()
 print(' 名稱 人數(shù) 班主任')
 for row3 in results3:
 print(row3)
 num4 = int(input('請(qǐng)輸入想要查詢班級(jí)前所對(duì)應(yīng)的數(shù)字：'))
 while True:
 if num4 == 1:
 print('-' * 20,'\n1、查看班級(jí)所有人信息\n'
 '2、添加學(xué)生信息\n'
 '3、刪除學(xué)生信息\n'
 '4、修改學(xué)生信息\n'
 '0、退出系統(tǒng)')
 print('-' * 20)
 num5 = int(input('請(qǐng)選擇功能（序號(hào)）：'))
 if num5 == 1:
 sql4 = 'select student_name,sex,student_num,evaluation from cloud_one'
 cursor.execute(sql4)
 results4 = cursor.fetchall()
 print('姓名 性別 學(xué)號(hào) 評(píng)分')
 for row4 in results4:
 print(row4)
 elif num5 == 2:
 print('您選擇了添加學(xué)生信息功能')
 name = str(input('請(qǐng)輸入學(xué)生姓名：'))
 sex = str(input('請(qǐng)輸入學(xué)生性別：'))
 studentnum = int(input('請(qǐng)輸入學(xué)生學(xué)號(hào)（學(xué)號(hào)不可重復(fù)）：'))
 pf = int(input('請(qǐng)輸入學(xué)生評(píng)測(cè)分?jǐn)?shù)：'))
 sql5 = 'insert into cloud_one(student_name,sex,student_num,evaluation) values("%s","%s",%d,%d）' % (name,sex,studentnum,pf)
 print(sql5)
 try:
 cursor.execute(sql5)
 db.commit()
 except:
 db.rollback()
 print('******已添加成功******')
 elif num5 == 3:
 print('您選擇了刪除學(xué)生信息功能')
 num6 = int(input('請(qǐng)您輸入要?jiǎng)h除的學(xué)號(hào)：'))
 sql6 = 'delete from cloud_one where student_num = %d'%num6
 try:
 cursor.execute(sql6)
 db.commit()
 except:
 db.rollback()
 print('******已刪除成功******')
 elif num5 == 4:
 print('您選擇了修改學(xué)生信息功能')
 num7 = int(input('請(qǐng)您輸入要修改的學(xué)生學(xué)號(hào)'))
 sql7 = 'select student_name,sex,student_num,evaluation from cloud_one where student_num=%d'%num7
 cursor.execute(sql7)
 results5 = cursor.fetchall()
 print(' 姓名 性別 學(xué)號(hào) 評(píng)分')
 print(results5)
 xm = str(input('請(qǐng)輸入您要更改的姓名：'))
 xb = str(input('請(qǐng)輸入您要更改的性別：'))
 xh = int(input('請(qǐng)輸入您要更改的學(xué)號(hào)：'))
 pf = int(input('請(qǐng)輸入您要更改的評(píng)分：'))
 sql8 = 'update cloud_one set student_name="%s",sex="%s,student_num=%d,evaluation=%d' % (xm,xb,xh,pf)
 print(sql8)
 try:
 cursor.execute(sql8)
 db.commit()
 except:
 db.rollback()
 print('*****已更改成功****')
 elif num5 == 0:
 num8 = str(input('******你真的要離開寶寶嗎******（Y/N）：'))
 if num8 == 'Y':
 break
 else:
 continue