做登录心得

import os

print("这是一个登录程序")
print("---------------------------------------------------------------------")
log_name=input("请输入你的登录账号：")
if not os.path.exists(r"D:\programe\PyCharm 2017.2.3\homework1\cookie.txt"):
    print("第一次登录，请等待创建cookie")
    f=open("cookie.txt","w")
    log_name= input("请重新输入你的登录名： ")
    password= input("请输入你的密码： ")
    locked= 0
    f.write(log_name+ "\n"+password+"\n"+str(locked))
    f.close()
    print("创建结束，请牢记你的账户及密码。一旦输错3次账户就会被锁定!")

f=open(r"D:\programe\PyCharm 2017.2.3\homework1\cookie.txt","r")
people =f.readlines()
name=people[0].strip()
pw=people[1].strip()
lc=int(people[2])
f.close()

while not log_name==name:
    log_name=input("无此账户，请重新输入：")
else:
    if  lc==1:
        print("账户已经被锁定！")
    else:
        password=input("请输入你的密码：")
        i=0
        while not pw == password:
             password =input("你输入的密码错误！请重新输入：你还有%d次机会!"%(2-i))
             i=i+1
             if i>1:
                print("账户已经被锁定!")
                lc=1
                f = open(r"D:\programe\PyCharm 2017.2.3\homework1\cookie.txt", "r")
                people = f.readlines()
                name = people[0].strip()
                pw = people[1].strip()
                f.close()
                f=open(r"D:\programe\PyCharm 2017.2.3\homework1\cookie.txt","w")
                f.write(name + "\n" + pw+ "\n" + str(lc))
                f.close()
                break
        else:
            print("欢迎 %s 登录!" %log_name)