用户认证练习

用户输入用户名密码，密码认证三次，都输入不正确锁定

 

账户密码记录文件 data,

hong|123
ding|123

　　

锁定账户密码文件 data1,

hong

 

import os,sys,getpass
from pathlib import Path
f = open(Path(__file__).parent / "data","r")    #指定账户文件
d = open(Path(__file__).parent / "data1","r+")    #读取黑名单

#看是否锁定
name_in = input("Pleae input your name:").strip()
for black in d:
    if name_in == black.strip():
        print("\033[31m Your count has locked \033[0m")
        sys.exit()
    #    sys.exit("Your count has locked,Please contect the manager!")
#判断是否为有效账户
if name_in not in f.read():
    sys.exit("Please check your name，invalid name")
f.close()


for i in range(3):    
    f = open(Path(__file__).parent / "data","r")
    pass_in = getpass.getpass("Please input your password:")  #用户输入密码
    ##开始验证用户密码
    for line in f:    #读取账户
        f_name = line.split("|")[0]  #获取用户名
        f_pass = line.split("|")[1].strip()    #获取密码
        if name_in == f_name and pass_in == f_pass:
            sys.exit("Wellcome")
        else:
            cout_t = 2 - i
            print("password error,please try again,you have %s times" % cout_t)                
            break
    f.close()
else:
    d.write(name_in + "\n") #失败3次加入黑名单
    sys.exit("your count has locked")
d.close()

import os,sys,getpass    #导入模块
from pathlib import Path
os.system('clear')
#u_f = open(Path(__file__).parent / "data","r")    #打开文件
d_f = open(Path(__file__).parent / "data1","r+")

for i in range(3):
    name_in = input("Please input your name:")    #用户输入用户名
    with open(Path(__file__).parent / "data","r") as u_f:    #读取用户名
        for u_list in u_f:
            u_name = u_list.split("|")[0].strip()    #获取用户名
            u_pass = u_list.split("|")[1].strip()    #获取用户密码
            if name_in == u_name:    #如果有效
                for d_u in d_f:        #验证是否在黑名单
                    if name_in == d_u.strip():
                        print("\33[31m Your count has been locked! \33[0m")
                        sys.exit()
                else:
                    for j in range(3):
                        pass_in = getpass.getpass("Please input your password:")    #输入用户名
                        if pass_in == u_pass:
                            print("\33[32m Wellcome to system ! \33[0m")
                            sys.exit()
                        else:
                            cout_t = 2 - j
                            print("password error,please try again,you have %s times" % cout_t)
                            continue
                    else:
                        d_f.write(name_in + "\n") #失败3次加入黑名单
                        sys.exit("your count has locked")
                        d_f.close()
        else:
            print("Please input valid acount!")    #无效用户名重试
            pass
else:
    sys.exit("Sorry, the name is invalid")    #无效用户名，退出