#coding=utf-8 
 
#保存学生信息 
studentList=[] 
 
def addInfo(name,addr): 
 tempInfo={} 
 tempInfo['name']=name 
 tempInfo['addr']=addr 
 studentList.append(tempInfo) 
 print(studentList) 
 
def delInfo(number): 
 if number<len(studentList) and number>=0 : 
 del studentList[number] 
 
 else: 
 print("您输入的序号有误:") 
 
def changeInfon(modifNum,name,addr): 
 if modifNum<len(studentList) and modifNum>=0 : 
 tempInfo={} 
 tempInfo['name']=name 
 tempInfo['addr']=addr 
 studentList[modifNum]=tempInfo 
 
 else: 
 print("您输入的序号有误:") 
 
def findInfo(findName): 
 i=0 
 for info in studentList: 
 if findName ==info['name']: 
 print("您要查找的信息为%i %s %s"%(i,info['name'],info['addr'])) 
 
 
while True: 
 print("-"*30) 
 print("请输入您的选项") 
 print("1.新增学生信息") 
 print("2.删除学生信息") 
 print("3.修改学生信息") 
 print("4.查询学生信息") 
 print("-"*30) 
 
 
#等待用户输入选项 
 choose=int(raw_input("请输入您的选项:")) 
 
 
 if 1==choose: 
 name=raw_input("请输入学生的姓名:") 
 addr=raw_input("请输入学生的籍贯:") 
 addInfo(name,addr) 
 
 elif 2==choose: 
 if 0==len(studentList): 
 print("当前系统没用任何学生信息") 
 continue 
 i=0 
 for info in studentList: 
 print("%i %s %s"%(i,info['name'],info['addr'])) 
 i+=1 
 number=int(raw_input("请输入要删除的序号:")) 
 delInfo(number) 
 print("删除之后的信息为：%s"%studentList) 
 
 elif 3==choose: 
 i=0 
 for info in studentList: 
 print("%i %s %s"%(i,info['name'],info['addr'])) 
 i+=1 
 modifNum=int(raw_input("请输入要修改的序号:")) 
 name=raw_input("请输入学生的姓名:") 
 addr=raw_input("请输入学生的籍贯:") 
 
 changeInfon(modifNum,name,addr) 
 print("修改之后的信息为：%s"%studentList[modifNum]) 
 
 elif 4==choose: 
 findName=raw_input("请输入要查找的学生的姓名:") 
 findInfo(findName) 
 
 else : 
 print("您输入的有误,请重新输入") 
 continue