要求:
1.sean用户能正确登录,输入其他用户提示“用户没有找到”,输入错误密码或错误用户超过5次自
动退出
2.引用listname.txt文件,查找相关记录,如果没有找到记录那么输出“没有找到相关条目!”
范例:
i = 1 n = 1 s = 1 while n < 6: name = raw_input(‘请输入用户名:‘) true_name = ‘sean‘ if name == true_name: while i < 6: password = raw_input(" 请输入密码:") true_password = ‘123‘ if password == true_password: print ‘欢迎%s登录!‘ %name i = 7 n = 7 else: print ‘请再次输入密码!‘ i = i + 1 n = 7 else: print ‘用户%s没有找到!‘ %name n = n + 1 while True: keyword = raw_input(‘请输入查询关键字:‘) F = file(‘listname.txt‘) match_yes = ‘NO‘ while True: line = F.readline() if len(line) == 0:break if keyword != ‘‘: if keyword in line: print line match_yes = ‘YES‘ else: print ‘非法关键字!‘ match_yes = ‘YES‘ break if match_yes == ‘NO‘: print ‘没有找到%s相关条目 !‘ %keyword
时间: 2024-08-09 06:32:08