Python编写通讯录通过数据库存储实现模糊查询功能

sql1 =
'insert into TA(ID,NAME,AGE,ADDRESS,TELENUMBER)'
sql1 += 'values("%d","%s","%d","%s","%s");' % (ID,name, age, address, telenumber)
conn.execute(sql1)
conn.commit() # 提交，否则无法保存

cursor = c.execute( "SELECT name from TA where name = '%s';" %i)

cursor = c.execute( "SELECT name from TA where telenumber= '%s';" % i)

sql1 = "SELECT id,name,age, address, telenumber from TA where telenumber like '%" + i +
"%'"
cursor = c.execute(sql1)

sql1= "SELECT id,name,age, address, telenumber from TA where name like '%" +i+
"%'"
cursor = c.execute(sql1)

cursor = c.execute( "SELECT id, name, age, address, telenumber from TA" )

import sqlite3
import re
#打开本地数据库用于存储用户信息
conn = sqlite3.connect('mysql_telephone_book.db')
c = conn.cursor()
#在该数据库下创建表，创建表的这段代码在第一次执行后需要注释掉，否则再次执行程序会一直提示：该表已存在
'''c.execute("CREATE TABLE TA
    (ID INT PRIMARY KEY   NOT NULL,
    NAME      TEXT  NOT NULL,
    AGE      INT   NOT NULL,
    ADDRESS    CHAR(50),
    TELENUMBER     TEXT);")'''

conn.commit()#提交当前的事务
#增加用户信息
def insert():
  global conn
  c = conn.cursor()
  ID=int(input("请输入id号："))
  name=input("请输入姓名：")
  age=int(input("请输入年龄："))
  address=input("请输入地址：")
  telenumber=input("请输入电话号码:")
  sql1 = 'insert into TA(ID,NAME,AGE,ADDRESS,TELENUMBER)'
  sql1 += 'values("%d","%s","%d","%s","%s");' % (ID,name, age, address, telenumber)
  conn.execute(sql1)
  conn.commit()#提交，否则无法保存
  print("提交成功！！")
#删除用户信息
def delete():
  global conn
  c=conn.cursor()
  i = input("请输入所要删除的联系人姓名或电话号码:")
  if len(i) < 11:
    cursor = c.execute("SELECT name from TA where name = '%s';"%i)
    for row in cursor:
      if i == row[0]:
        c.execute("DELETE from TA where name ='%s';"%i)
        conn.commit()
        print("成功删除联系人信息！！")
        break
    else:
      print("该联系人不存在！！")
  else :
    cursor = c.execute("SELECT name from TA where telenumber= '%s';" % i)
    for row in cursor:
      if i == row[0]:
        c.execute("DELETE from TA where telenumber ='%s';" % i)
        conn.commit()
        print("成功删除联系人信息！！")
        break
    else:
      print("该电话号码错误！！")
#查询用户信息
def search():
  global conn
  c = conn.cursor()
  i = input("请输入所要查询的联系人姓名或电话号码:")
  if i.isnumeric():
    sql1 = "SELECT id,name,age, address, telenumber from TA where telenumber like '%" + i + "%'"
    cursor = c.execute(sql1)
    res=cursor.fetchall()
    if len(res)!=0:
      for row in res:
        print("id:{0}".format(row[0]))
        print("姓名:{0}".format(row[1]))
        print("年龄:{0}".format(row[2]))
        print("地址:{0}".format(row[3]))
        print("电话号码:{0}".format(row[4]))
    else:
      print("无此电话号码！！")
  else:
    sql1="SELECT id,name,age, address, telenumber from TA where name like '%"+i+"%'"
    cursor = c.execute(sql1)
    res=cursor.fetchall()
    if len(res) == 0:
      print("该联系人不存在！！")
    else:
      for row in res:
        print("id:{0}".format(row[0]))
        print("姓名:{0}".format(row[1]))
        print("年龄:{0}".format(row[2]))
        print("地址:{0}".format(row[3]))
        print("电话号码:{0}".format(row[4]))
#显示所有用户信息
def showall():
  global conn
  c = conn.cursor()
  cursor = c.execute("SELECT id, name, age, address, telenumber from TA")
  for row in cursor:
    print("id:{0}".format(row[0]))
    print("姓名:{0}".format(row[1]))
    print("年龄:{0}".format(row[2]))
    print("地址:{0}".format(row[3]))
    print("电话号码:{0}".format(row[4]))
print("指令如下：\n1.输入\"add\"为通讯录添加联系人信息\n2.输入\"delete\"删除通讯录里的指定联系人信息 \n3.输入\"searchall\"查询通讯录里的所有用户 \n4.输入\"search\"根据姓名或手机号码查找信息 ")
while 1:
  temp = input("请输入指令：")
  if temp == "add":
    insert()
    print("添加成功！")
    temp1=input("是否继续操作通讯录？(y or n)")
    if temp1=="n":
      print("成功退出！！")
      break
    else:
      continue
  elif temp=="delete":
    delete()
    temp1 = input("是否继续操作通讯录？(y or n)")
    if temp1 == "n":
      print("成功退出！！")
      break
    else:
      continue
  elif temp=="searchall":
    showall()
    temp1 = input("是否想继续操作通讯录？(y or n)")
    if temp1 == "n":
      print("成功退出！！")
      break
    else:
      continue
  elif temp=="search":
    search()
    temp1 = input("您是否想继续操作通讯录？(y or n)")
    if temp1 == "n":
      print("成功退出！！")
      break
    else:
      continue
  else:
    print("请输入正确指令！！")
conn.close()#关闭数据库