第二阶段---python基础--模拟登陆

说明：

1、用户原文件存储在文件中_userinfo

2、判断是否存在登陆错误的用户_被锁定的用户_wrong_name2，没有创建，并写入用户文件头username，带逗号，锁定用户以‘逗号‘隔开;

3、判断输入用户是否存在锁定账户中(取出用户名，存入列表，)

4、逻辑控制，用户名，或秘密超过3次记录该用户的用户名到文件;

import osif os.path.exists(‘wrong_name2‘):    file_wrong=open(‘wrong_name2‘)    f=file_wrong.readline()    lock_name=f.split(‘,‘)    for i in lock_name:        print(i)    file_wrong.close()else:    with open(‘wrong_name2‘,‘w‘) as f_wrong:        f_wrong.write(‘username‘)        f_wrong.write(‘,‘)        lock_name=f_wrong.split(‘,‘)        for i in lock_name:            print(i)        file_wrong.close()

file=open(‘userinfo2‘)info=eval(file.readline())print(info)l_name=[]l_passwd=[]l_count=[]count=0for i in info:    l_name.append(i[0])for k in info:    l_passwd.append(i[1])

while True and count<3:    name=input(‘pls input your name:‘).strip()    if name in lock_name:        print(‘the count is locked...exit.‘)        exit()    while name in l_name and count<3:        count=0        while count<3:            passwd=input(‘pls input your passwd:‘).strip()            if passwd in l_passwd:                print(‘welcome‘)                break            else:                count+=1                print(‘wrong passwd‘)                print(count)        else:            l_count.append(name)            print(l_count)            f_w=open(‘wrong_name2‘,‘a+‘)            f_w.write(str(l_count[-1]))            f_w.write(‘,‘)            f_w.close()            print(‘count>>>%s was locked...‘%name)            exit()    else:        count+=1        print(‘wrong name...‘)        continueelse:    l_count.append(name)    f_w=open(‘wrong_name2‘,‘a+‘)    f_w.write(str(l_count[-1]))    f_w.write(‘,‘)    print(‘count>>>%s was locked...‘%name)