第2模块第1章35函数—练习题
修改个人信息程序
在一个文件里存多个人的个人信息，如以下
username password age position department
alex abc123 24 Engineer IT
rain df2@432 25 Teacher Teching
....
1.输入用户名密码，正确后登录系统 ，打印
1. 修改个人信息
2. 打印个人信息
3. 修改密码
2.每个选项写一个方法
3.登录时输错3次退出程序
import os
# 负责登录的函数
def login():
dic = {}
fo =open("staff.txt","rt",encoding="UTF-8")
for linein fo:
inf = line.split(",")
dic[inf[0]] = line.split(",")
print(dic)
count =0
username =None
last_name =None
flag =True
while count <3:
username =input("请输入用户名：")
password =input("请输入密码：")
if last_name != usernameand count >0:
flag =False
last_name = username
count +=1
if usernamenot in dic:
print("用户名不存在")
continue
elif dic[username][-1] =="1\n":
print("用户%s被锁定，禁止登陆！" % username)
exit()
else:
if dic[username][1] == password:
print("welcome！！")
break
else:
print("密码输入错误！！")
continue
else:
if flagis True:
(dic[username][-1]) ="1\n"
print("用户" + username +"被锁定，禁止登陆！请联系管理员！")
fo =open("staff.txt","wt",encoding="UTF-8")
for keyin dic:
fo.writelines(",".join(dic[key]))
fo.close()
exit()
return dic[username]
# 打印用信息
def print_p(user_info):
print("Name:", user_info[2])
print("Age:", user_info[3])
print("Job:", user_info[4])
print("Dept:", user_info[4])
print("Phone:", user_info[6])
# 为将修改后的信息写回文件的函数，做准备
def your(old_str, command, user_info):
print("current value>:", user_info[command])
user_info[command] =input("new value>:")
your_script(old_str,",".join(user_info),"staff")
# 将修改后的信息写回文件的函数
def your_script(old_str, new_str, filename):
filename = filename +".txt"
f_new_name ="new%s" % filename
f =open(filename,"r",encoding="utf-8")
f_new =open(f_new_name,"w",encoding="utf-8")
for linein f:
if old_strin line:
line = line.replace(old_str, new_str,1)
f_new.write(line)
f.close()
f_new.close()
os.remove(filename)
os.rename(f_new_name, filename)
# 修改用户信息的函数
def modify(user_info):
print("person data:", user_info)
print("2.Name:", user_info[2])
print("3.Age:", user_info[3])
print("4.Job:", user_info[4])
print("5.Dept:", user_info[4])
print("6.Phone:", user_info[6])
command =eval(input("[select column id to change]:"))
old_str =",".join(user_info)
if command ==2:
your(old_str, command, user_info)
elif command ==3:
your(old_str, command, user_info)
elif command ==4:
your(old_str, command, user_info)
elif command ==5:
your(old_str, command, user_info)
elif command ==6:
your(old_str, command, user_info)
# 修改密码的函数
def modify_password(user_info):
command1 =input("请输入新密码>>>")
command2 =input("请再次输入新密码>>>")
if command1 == command2:
old_str =",".join(user_info)
user_info[1] = command1
your_script(old_str,",".join(user_info),"staff")
else:
print("两次密码不同！")
# 主函数
def main():
user_info = login()
while True:
print("""1. 打印个人信息
2. 修改个人信息
3. 修改密码""")
command =input(">>>:")
if command =="1":
print_p(user_info)
elif command =="2":
modify(user_info)
elif command =="3":
modify_password(user_info)
elif command =="q":
quit()
else:
print("命令错误！无法理解")
main()
基本完成功能，待美化修改
